Based on Lana's diagram, the correct statement that explains the results of asexual reproduction is C. The offspring are genetically identical to the parent, because each offspring receives a complete copy of a single parent's chromosomes.
What happens in asexual reproduction?In the diagram, the parent cell divides into two identical daughter cells, each of which contains a complete copy of the parent cell's genetic material.
This type of reproduction, where a single parent produces offspring that are genetically identical to itself, is called asexual reproduction. It is the process by which many unicellular organisms, such as bacteria and some protists, reproduce.
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Two elements in the same group on the periodic table of the elements are most similar in their...
atomic mass
number of protons
atomic size
chemical reactivity
Two elements in the same group on the periodic table of the elements are most similar in their number of protons.
What is electrons ?
The negatively charged atom's electrons are responsible for this. An atom's total negative charge, which is produced by all of its electrons, counteracts the positive charge of the protons in the atomic nucleus.
What is element?
The atoms make the element. The atoms are created up of the element; it is a pure substance it can't be able to split up. The element is created up of a single kind of atom. Atoms are the main thing for the creation of elements. Elements are classified according to their performance and physical properties.
Therefore, Two elements in the same group on the periodic table of the elements are most similar in their number of protons.
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what is a coefficient and give an example.
Answer:
Explanation:
In mathematics, a coefficient is a multiplicative factor in some term of a polynomial, a series, or an expression; it is usually a number, but may be any expression. When the coefficients are themselves variables, they may also be called parameters.
How many grams of ammonia will be formed upon the reaction of 30.7 grams of nitrogen gas with excess hydrogen gas
Answer: 37.32
Explanation:
Nitrogen gas (N2) - 28.02 g/mol
Hydrogen gas (H2) - 2.02 g/mol
Ammonia gas (NH3) - 17.03 g/mol
Using the given mass of nitrogen gas, we can first calculate the number of moles of nitrogen gas present:
moles of N2 = mass of N2 / molar mass of N2
moles of N2 = 30.7 g / 28.02 g/mol
moles of N2 = 1.096 mol
From the balanced chemical equation, we know that one mole of nitrogen gas reacts with three moles of hydrogen gas to form two moles of ammonia gas. Since we have an excess of hydrogen gas, we can assume that all of the nitrogen gas will react to form ammonia gas. Therefore, we can calculate the number of moles of ammonia gas formed using the mole ratio from the balanced chemical equation:
moles of NH3 = (moles of N2) x (2 moles of NH3 / 1 mole of N2)
moles of NH3 = 1.096 mol x (2 mol/1 mol)
moles of NH3 = 2.192 mol
Finally, we can calculate the mass of ammonia gas formed using its molar mass:
mass of NH3 = moles of NH3 x molar mass of NH3
mass of NH3 = 2.192 mol x 17.03 g/mol
mass of NH3 = 37.32 g
How many moles of oxygen are in 576.22g O2 (keep in mind that each mole of O2 has 2 moles of oxygen in it!)?
The term mole concept is used here to determine the number of moles of oxygen. The number of moles of oxygen obtained is 18.063 moles.
What is a mole?One mole of a substance is defined as that quantity of it which contains as many entities as there are atoms exactly in 12 g of carbon - 12. The formula used to calculate the number of moles is:
Number of moles = Given mass / Molar mass
The molar mass of Oxygen molecule = 31.9 g/mol
The given mass of Oxygen molecule = 576.22 g
Number of moles = 576.22 g / 31.9 g/mol = 18.063 moles
Thus the number of moles of oxygen molecule is 18.063 moles.
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Outline why there is no limit to the number of control variables that an experiment can have.
Most experimental designs measures solely one or two variables at a time. Any different factor, which could probably impact the results, should be efficaciously controlled.
Why is it vital to restriction the number of variables in an experiment?Controlling variables is important due to the fact mild variations in the experimental set-up ought to strongly have an effect on the result being measured.
Can an scan have extra than one controlled variable explain?Controlled variables are portions that a scientist needs to remain constant. If they had been altered, it would appreciably have an effect on the experiment's results. Most experiments have extra than one controlled variable.
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True or False: As an object's distance from the ground increases, so does its potential energy
Answer:
ture
Explanation:
The potential energy of any system veritably depends upon the distance depending upon the types of forces acting on the objects. The potential energy undeniably depends upon the distance and is inversely proportional to each other. If the force between the two is attractive then the potential energy will increase with increasing distance between them both, and if the force is repulsive then the potential energy will increase will decreasing the distance between them.
Given: F2 (g)
P1: 8. 0513 atm
P2: 8. 3457 atm
T2: 508. 88 K
Wanted: T1 in kelvins?
For the F₂ (g) , P₁ is 8.0513 atm , P₂ is 8.3457 atm, T₂ is 508.88 K, T₁ in kelvins is 490.8 K.
The initial pressure, P₁ = 8.0513 atm
The finial pressure, P₂ = 8.3457 atm
The initial temperature , T₁ = ?
The final temperature, T₂ = 508.8 K
The pressure - temperature expression is as follows :
The pressure of the gas is inversely proportional to the temperature of the gas.
P₁ / T₁ = P₂ / T₂
T₁ = P₁ T₂ / P₂
T₁ = ( 8.0513 × 508.8 ) / 8.3457
T₁ = 490.8 K
Thus, the initial temperature is the 490.8 K with the initial pressure of the 8.0513 atm.
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Balance this equation: CS^2 + O^2 ---> CO^2 + SO^2
Balanced equation = CS₂ + O₂ = 2CO₂ + SO₂ . The reaction's mass and charge are in balance on both sides.
What is a reaction to balance?An equation for a chemical reaction that has the same total charge and number of atoms for both the reactants and the products is called a balanced equation. To put it another way, the reaction's mass and charge are in balance on both sides.
A balanced chemical equation is one in which the mass of the reactants and the mass of the products are both equal to the number of atoms of each element on both sides of the equation.
Why do we balance equations?To comply with the law of conservation of mass, which states that "Total mass of all the products of the reaction in a chemical reaction is equal to the total mass of all the reactants," the chemical equation must be balanced.
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Use the reaction to answer the question.
N₂(g) + 3H₂(g) + 2NH3(g) + energy
When this reaction has reached equilibrium, how will it respond when the temperature of the system increases?
(1 point)
O The concentration of N₂ will decrease.
O The concentration of H₂ will decrease.
O The equilibrium will shift to the left.
O The equilibrium will shift to the right.
The equilibrium will respond to an increased temperature of the system by shifting to the left. Option 3.
Le Charterlier's principle
According to Le Chatelier's principle, when a system at equilibrium is subjected to a stress, the system will respond in a way that tends to counteract the stress and reestablish equilibrium. In this case, an increase in temperature is a stress that will disrupt the equilibrium.
According to the reaction equation, the forward reaction is exothermic, meaning that heat is released when the reaction proceeds in the forward direction. Therefore, an increase in temperature will cause the equilibrium to shift in the direction that absorbs heat, which is the reverse reaction.
To counteract the increase in temperature, the equilibrium will shift to the left, favoring the reactants. This means that the concentration of N₂ and H₂ will increase, while the concentration of NH₃ will decrease. Therefore, the correct answer is: The equilibrium will shift to the left.
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What makes hydrogen and methane hard to condense?
Flourinated gases are made by humans and used as coolants in refrigerators and air conditioning systems. Fluorinated gas molecules have a low chemical reactivity, so they tend to stay in the atmosphere and trap heat energy. The graph below shows emissions of fluorinated gases from 1990 to 2013.
The graph supports the following statement: The use of fluorinated gases has contributed to global warming.
What role do fluorinated gases play in global warming?
Fluorinated gases, also known as F-gases, are a class of man-made gases found in a variety of industrial and commercial applications such as refrigeration and air conditioning systems, electrical equipment, and aerosol sprays. They consist of hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulphur hexafluoride (SF6).
F-gases are potent greenhouse gases, meaning they have a high global warming potential (GWP), which is a measure of their ability to trap heat in the atmosphere. HFCs, for example, have a GWP thousands of times greater than carbon dioxide (CO2).
F-gases contribute to global warming by trapping heat and preventing it from escaping into space when they are released into the atmosphere. The greenhouse effect causes the Earth's temperature to rise, resulting in climate change.
F-gases, in addition to having a direct impact on global warming, can indirectly contribute to climate change by encouraging the use of energy-intensive technologies such as air conditioning and refrigeration systems. Increased energy demand may result in the use of fossil fuels, which increases greenhouse gas emissions and worsens global warming.
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24) Write, balance, and label the equations below.
HCl(aq) + KOH(aq)
iron metal + copper(II) sulfate → iron(II) sulfate + copper metal
potassium bromide → potassium metal + bromine
chlorine gas+ sodium metal → sodium chloride
aluminum sulfate + calcium phosphate →
7
sodium iodide + chlorine gas →
C₂H₁0 + O₂
+
1. HCl(aq) + KOH(aq) --> KCl(aq) + H₂O(l)
2. Fe(s) + CuSO₄(aq) --> FeSO₄(aq) + Cu(aq)
3. KBr --> K + Br
4. Cl₂ + 2Na --> 2NaCl
5. Al₂(SO₄)₃ + Ca₃(PO₄)₂ --> 2AlPO₄ + 3CaSO₄
6. 2NaI + Cl2 --> 2NaCl + I₂
7. 2C₄H₁₀ + 13O₂ --> 10H₂O + 8CO₂
Please Help Me!!
Question #81
Esters are a class of compounds that impart characteristic odor to some fruits. The ester one toy acetate, composed of carbon, hydrogen, and oxygen, has the odor of bananas. When 7.44 g of this compound undergoes complete combustion, 17.6 g CO2 and 7.22 g H2O are produced.
C2H3O2 is the empirical equation for acetate. The molar mass of acetate is 59.05 g/mol.
What is mass?Mass is the physical property of a body which measures its inertia, or its resistance to changes in its speed or direction of motion. Mass is often measured in units of kilograms, but can also be measured in other units such as pounds. Mass is different than weight, which is a measure of gravity's effect on a body. Mass is the same on all planets and in all parts of the universe, while the strength of gravity can vary.
To calculate the moles of acetate, we divide the mass of acetate by its molar mass:
7.44 g acetate / 59.05 g/mol = 0.1258 mol acetate
To calculate the moles of CO2 and H2O produced, we divide the mass
of CO2 and H2O by their molar masses:
17.6 g CO2 / 44.01 g/mol = 0.4002 mol CO2
7.22 g H2O / 18.02 g/mol = 0.4011 mol H2O
We can then compare the moles of CO2 and H2O produced with the moles of acetate:
0.1258 mol acetate = 0.4002 mol CO2 + 0.4011 mol H2O
This shows that the combustion of 7.44 g of acetate produced the expected ratio of CO2 and H2O.
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Can someone please help me???
1)
3 KOH + H3PO4 => K3PO3 +3 H2O What is the perent yeild of K3PO3 if the actual yield was 3.52 g K3PO4 and the intial mass of KOH was 2.45g?
2)
C2H6O +3 O2 => 2 CO2 + 3 H2O What is the percent yield of CO2 if the actual yield was 8.25 and the initial mass of O2 is 14.23 g?
3)
4 NH3 + 5O2 => 4 NO + 6 H2O How many grams of NO can be produced if 4.25 g of Nh3 are mixed with 4.25 g of O2?
Thank you all in advance!!!!
The percent yield of K3PO3 is 75.54%. The percent yield of K3PO3 is 75.54% and 7.20 g of NO can be produced.
Find the percent yield of all three questions?
1. The balanced equation is 3 KOH + H3PO4 => K3PO3 + 3 H2O. The molar mass of KOH is 56.11 g/mol and the molar mass of K3PO3 is 212.27 g/mol. The stoichiometric ratio between KOH and K3PO3 is 3:1.
The theoretical yield of K3PO3 can be calculated as follows:
2.45 g KOH × (1 mol KOH / 56.11 g) × (1 mol K3PO3 / 3 mol KOH) × (212.27 g K3PO3 / 1 mol K3PO3) = 4.66 g K3PO3
The percent yield of K3PO3 can be calculated as follows:
(actual yield / theoretical yield) × 100% = (3.52 g / 4.66 g) × 100% = 75.54%
Therefore, the percent yield of K3PO3 is 75.54%.
2. The balanced equation is C2H6O + 3 O2 => 2 CO2 + 3 H2O. The molar mass of O2 is 32.00 g/mol and the molar mass of CO2 is 44.01 g/mol. The stoichiometric ratio between O2 and CO2 is 3:2.
The theoretical CO2 yield can be calculated as follows:
14.23 g O2 × (1 mol O2 / 32.00 g) × (2 mol CO2 / 3 mol O2) × (44.01 g CO2 / 1 mol CO2) = 13.31 g CO2
The percent yield of CO2 can be calculated as follows:
(actual yield / theoretical yield) × 100% = (8.25 g / 13.31 g) × 100% = 61.92%
Therefore, the percent yield of CO2 is 61.92%.
3. The balanced equation is 4 NH3 + 5 O2 => 4 NO + 6 H2O. The molar mass of NH3 is 17.03 g/mol and the molar mass of NO is 30.01 g/mol. The stoichiometric ratio between NH3 and NO is 4:4 or 1:1.
First, we need to determine the limiting reagent between NH3 and O2.
4.25 g NH3 × (1 mol NH3 / 17.03 g) = 0.250 mol NH3
4.25 g O2 × (1 mol O2 / 32.00 g) = 0.133 mol O2
The limiting reagent is O2 because it produces fewer moles of NO compared to NH3.
The theoretical yield of NO can be calculated as follows:
0.133 mol O2 × (4 mol NO / 5 mol O2) × (30.01 g NO / 1 mol NO) = 7.20 g NO
Therefore, 7.20 g of NO can be produced.
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A hockey puck is sitting at rest on the ice.
Determine all the forces acting on the puck.
Friction
Gravity
Normal
Drag
The friction force is the force that is created when two surfaces move against each other. The gravity force is the force of attraction between the puck and the Earth.
What is friction?Friction is the force that resists motion when two objects rub against each other. On the ice, the puck is in contact with the ice surface, creating a frictional force between the two surfaces.
Friction: Friction is the force that resists motion when two objects rub against each other. On the ice, the puck is in contact with the ice surface, creating a frictional force between the two surfaces. The frictional force is proportional to the normal force, which is the force that the ice surface exerts on the puck in the direction perpendicular to the surface.
Gravity: The force of gravity is the force that pulls the puck towards the center of the Earth. This force is always present and is directed downwards towards the ground.
Normal: The normal force is the force that the ice exerts on the puck in the direction perpendicular to the surface. This force is a reaction force to the force of gravity and is what prevents the puck from sinking into the ice.
Drag: Drag is the force created by the air resistance from the air molecules surrounding the puck. This force acts in the opposite direction of the puck's velocity, slowing it down. This force increases with the speed of the puck, but is always negligible compared to the other forces acting on the puck.
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Which of these is NOT true of a molecule?
A:A. All molecules have equally strong bonds. B:B. A molecule is composed of at least two atoms. C:C. All molecules are too small to be seen without aid. D:D. A molecule forms after two atoms create a chemical bond
All molecules have equally strong bonds is not true of a molecule.
Strong covalent bonds hold atoms in molecules together, whereas weak intermolecular forces of attraction hold individual molecules together.
Ionic and covalent bonds are often regarded as strong bonding. But atoms or molecules can also unite to establish other, more transient relationships. London dispersion forces and hydrogen bonds are two examples of weak bonds that are frequently observed in biology.
Although the atoms in each molecule have strong bonds holding them together, the forces of attraction between molecules are often very weak. Usually gases, such covalent compounds include HCl, SO2, CO2, and CH4. There are weak attraction forces present in molecular structures.
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A student is making a solution of sugar in water. If the student uses 0.55 moles of sugar and enough water to make 908.08 milliliters of solution, what is the molarity of the student's sugar solution?
Answer:
Molarity is defined as the number of moles of solute per liter of solution. In this problem, we are given the number of moles of sugar and the volume of the solution in milliliters. We first need to convert the volume to liters before we can calculate the molarity.
To convert milliliters to liters, we divide by 1000:
908.08 milliliters = 908.08/1000 = 0.90808 liters
Now we can use the formula for molarity:
Molarity = moles of solute / liters of solution
Plugging in the given values, we get:
Molarity = 0.55 moles / 0.90808 liters
Molarity = 0.606 M (rounded to three significant figures)
Therefore, the molarity of the student's sugar solution is 0.606 M.
Answer:
The molarity of the student's sugar solution is 0.60 M.
Explanation:
Calculate the mass of iron contained in 95.00 grams of iron(II) chloride.
Explanation:
Refer to pic above........
To determine the mass of iron in 95.00 grammes of iron(II) chloride, we must first determine the compound's molecular formula.
The formula for iron(II) chloride is FeCl2.FeCl2 has the following molar mass:1 x 55.845 g/mol equals 55.845 g/mol 2 x 35.45 g/mol = 70.90 g/mol Cl FeCl2 molar mass = 55.845 + 70.90 = 126.745 g/mol
We can now use the molar mass of FeCl2 to calculate the number of moles of FeCl2 contained in 95.00 grammes of the compound: The number of moles equals the mass molar mass. FeCl2 molecular weight = 95.00 g 126.745 g/mol = 0.7492 mol
Because FeCl2 contains one iron atom per molecule, the sample contains 0.7492 mol of iron. Iron mass = number of moles of Fe molar mass of Fe Iron mass = 0.7492 mol 55.845 g/mol = 41.96 g As a result, the iron mass in 95.00 grammes of iron(II) chloride is 41.96 grammes.
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Looking at the solubility curve above for KClO3, at 30 degrees Celsius how many grams will dissolve to make a saturated solution?
A. about 120 g
B. 37 g
C. 10 g
D. 5 g
Looking at the solubility curve above for KClO3, at 30 degrees Celsius 37grams will dissolve to make a saturated solution.
Saturated and unsaturated solutions: what are they?
A saturated solution is one that has as much of the solute present as is capable of dissolving. A solution is said to be unsaturated if it doesn't contain all of the solute that can disperse in it.
A depiction of solubility (measured in g/100 g water) versus temperature (measured in °C) is known as a solubility curve. On the same graph, solubility curves for various substances are frequently depicted, allowing for easy comparisons. The curved line on the graph that depicts the connection between temperature and a substance's solubility at various temperatures is known as the solubility curve.
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how much potassium bromide can you dissolve at 324 grams of water in 55 degrees.
Approximately, 259.2 grams of potassium bromide can dissolve at 324 grams of water in 55 degrees
What is potassium bromide?
Potassium bromide is a salt that is formed from the elements potassium and bromine. It is a white crystalline solid with a salty taste and is soluble in water.
Potassium bromide has a wide range of applications, including its use as a medication to treat epilepsy and as a sedative for animals. It is also used in the production of photographic paper, as a flame and in the preparation of various chemicals.
Therefore, 259.2 grams of potassium bromide can dissolve at 324 grams of water in 55 degrees
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What is the limiting reactant when 8 molecules of hydrogen gas is added to 3 molecules of nitrogen gas?
N2 + 3H2 —> 2NH3
The stoichiometric concept is used here to determine the limiting reactant of the reaction. The relationship between the quantities of reactants and products of a chemical reaction is called stoichiometry. Here the limiting reactant is H₂ .
What is limiting reactant?The substance which is totally consumed when the chemical reaction is complete is defined as the limiting reagent. The amount of the product formed is limited by this reagent.
The balanced equation is:
N₂ + 3H₂ → 2NH₃
8 mol H₂ × 2 NH₃ / 3 H₂ = 5.33 mol NH₃
3 mol N₂ × 2 NH₃ / 1 = 6 mol NH₃
Thus H₂ is the limiting reagent.
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How do you think a magnet can causes something to move?
Answer: It's magnetic field.
Explanation: Its magnetic field causes any metal to be attracted to it. The strength of the attraction is based on how strong the field is.
Answer:
It's the weight due to gravity that it can cause something to move.
Explanation:
It is the process where strong and spatially varying magnetic fields exert forces on an object in such a way that is sufficient to counteract its weight due to gravity, allowing the object to 'float' off of the ground.
Calculate the moles of HCl remaining in each flask after the reaction with the unknown carbonate
0.1 moles HCl - 0.05 moles HCl = 0.05 moles HCl
Let's assume that you added 0.1 moles of HCl to each flask and that the amount of the unknown carbonate and NaOH used in each flask is the same. Let's also assume that the limiting reagent for each reaction is the unknown carbonate.
Balanced chemical equation for the reaction between the carbonate and HCl:
M2CO3 + 2HCl → 2MCl + CO2 + H2O
The limiting reagent is the unknown carbonate because it is present in a lower quantity than the HCl.
The number of moles of the limiting reagent that reacted is equal to the number of moles of HCl added, which is 0.1 moles.
The number of moles of the limiting reagent remaining is equal to the initial number of moles of the limiting reagent minus the number of moles of the limiting reagent that reacted. Since we do not know the initial number of moles of the unknown carbonate, we cannot calculate this value.
The stoichiometry of the balanced chemical equation tells us that 2 moles of HCl react with 1 mole of M2CO3. Therefore, the number of moles of HCl that reacted with the unknown carbonate is:
0.1 moles HCl x (1 mole M2CO3 / 2 moles HCl) = 0.05 moles M2CO3
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Question:
Calculate the moles of HCl remaining in each flask after the reaction with the unknown carbonate, One is the reaction between M2CO3 and HCl .The second reaction is between NaOH and HCl .They are given below . M2CO3(aq) + 2HC
Which set of elements are most likely ductile and malleable?
a. Ag, Au, and C
b. Li, Zn, and Ag
c. K, S, and Ne
The set of elements that are most likely ductile and malleable is Li, Zn, and Ag (option B).
What is malleability and ductility?Malleability is the ability to be hammered into thin sheets; capable of being extended or shaped by beating with a hammer, or by the pressure of rollers.
Ductility is the ability of a material to be drawn out longitudinally to a reduced section without fracture under the action of a tensile force.
Ductility and malleability are the characteristics of metals.
In option B, lithium, zinc and silver are all metals.
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PLEASE ANSWER REALLY QUICK!!
Drag the item from the item bank to its corresponding match.
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
This is to observe carefully and in detail so as to identify causes, key factors, or possible results.
This is what people do when they are searching for information. People often look in more than one location.
This is a prediction of the outcome of scientific processes based on analysis.
This is the process of steps taken in completing a task, such as a lab investigation.
We can see here that:
The cloudiest month - AprilThe coldest month - JanuaryThe hottest month - MayWhen the temperature first rose above 90 degrees - February.We see here that the bar graph will be more understandable if there is: A. Title.
Another thing that can aid in understanding the bar graph is: B. add pictures.
What is bar graph?Using rectangular bars with heights or lengths proportional to the values they represent, a bar chart or bar graph displays categorical data. Both a vertical and a horizontal bar plot are possible. A column chart is another name for a vertical bar graph.
An appropriate question to guide Sarah's research will be: C. Which fixture uses the most water in our home?
To make this a real experiment, Sarah has to do the following: D. Collect and analyze data before and after the leaks are fixed.
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Which three observations provide the strongest evidence that the shape of Earth is a sphere
The three observations that provide the strongest evidence that the shape of Earth is a sphere are:
The curved shape of Earth's shadow on the Moon during a lunar eclipse.The fact that ships disappear over the horizon hull-first, and then gradually disappear completely.The observation of different constellations in the sky depending on the observer's location on Earth.Is the Earth really a sphere?The Earth is not a perfect sphere, but rather an oblate spheroid, meaning it is slightly flattened at the poles and bulging at the equator. This is due to the Earth's rotation, which causes the equatorial regions to bulge outwards due to centrifugal force.
However, for practical purposes, the Earth is often considered a sphere since the difference in shape is relatively small compared to its overall size.
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HELP PLEASE
How many grams are in 6.500 moles of calcium nitride, Ca3N2?
Answer:
963.95
Explanation:
to go from moles to anything you multiply. so when going from moles to grams to take your moles and them multiply by the molar mass of the compound. the molar mass in this case is 148.3.
Organisms need certain types of nutrients for growth, repair, and other life processes. You get these nutrients from the foods you eat. Please list the three nutrients needed and provide at least one food source where you can find each nutrient.
sciences
Answer:
The three nutrients needed for growth, repair, and other life processes are:
Proteins: Proteins are important for building and repairing tissues in the body, as well as for producing enzymes and hormones. Good food sources of protein include chicken, fish, eggs, beans, lentils, nuts, and seeds.
Carbohydrates: Carbohydrates are the primary source of energy for the body. Good food sources of carbohydrates include whole grains, fruits, vegetables, and legumes.
Fats: Fats are important for insulation, protection, and energy storage in the body. Good food sources of healthy fats include avocados, nuts, seeds, olive oil, and fatty fish such as salmon.
Explanation:
in a double replacement reaction what is a sign that something occurs be descriptive
The formation of two new compounds that may or may not be accompanied by color change and precipitation is a sign of a double replacement reaction.
What is a double replacement reaction?In a double replacement reaction, two reactants exchange ions to create two new products with the same kind of chemical bonds. Typically, a precipitate is formed by one of the products. Double displacement reactions take the form:
AB + CD → AD + CB
Double replacement reactions can involve reactants with ionic or covalent bonds, but ionic molecules are more frequently involved in the kind of reaction. Double replacement reactions can involve bases and acids. The solvent is often water.
Give an example of double replacement reaction.The reaction between silver nitrate and sodium chloride in water serves as an illustration of a double replacement reaction. Ionic substances include sodium chloride and silver nitrate. In aqueous solution, both reactants disperse into their ions. The sodium ion takes up the nitrate anion to make sodium nitrate, whereas the silver ion picks up the sodium's chloride ion to form silver chloride. Both of the products are ionic compounds, just like the reactants. Due to its limited solubility in water, silver chloride precipitates from solution.
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look back at parts A and B to compare the properties of the unknown elements with the properties of the unknown elements. Based ok these properties, match each unknown element to its group in the periodic table. Drag each tile to the correct box .
The periodic table, also known as the periodic table of elements, is set up so that scientists can rapidly determine an element's mass, number of electrons, electron configuration, and other distinctive molecular characteristics.
What is periodic table?The chemical elements are arranged in rows and columns on what is known as the periodic table, or periodic chart of the (chemical) elements. It is frequently used in physics, chemistry, and other disciplines and is frequently regarded as a symbol of chemistry.
It is a visual representation of the periodic law, which asserts that the atomic numbers of chemical elements have a roughly periodic relationship with their characteristics. The table is split into four sections that are approximately rectangular in shape.
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