Answer:
he drank milk!!!
Explanation:
1. he told his dad to go get the milk
2. Steve's dad didn't come back until a year!
3. Steve's dad came back and gave him milk!
4. and boom, he grew!!
:)
All living organisms are capable of growing and producing offspring. All eukaryotic organisms including aquatic plants and algae grow through mitosis. Thus the correct option is 2.
What is mitosis?The mitosis is defined as the step in the cell cycle where the newly formed DNA is separated and results in the formation of two new cells which have the same number and kind of chromosomes as the parent nucleus.
It is defined as a process of asexual reproduction observed in unicellular organisms. The cell division is regarded as the driving process of reproduction at the cellular level. Mitosis is required for the growth of the cells and for the replacement of worn-out cells.
Mitosis helps organisms to grow in size and repair damaged tissue. The process of mitosis generates new cells which are genetically identical to each other.
Thus the correct option is 2.
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what is a difference between mass and volume
Answer:
Volume is how much space the object is taking up, whereas mass is the measurement of the amount of matter in the object.
Explanation:
Which scatterplot shows a positive association between the variables
Answer:
there is no picture, but it will be a graph that shows a mostly straight line going up to the right
Explanation:
Sep Obtain Information What are the Limitations to Making Progress with Engineering Better Batteries ? What progress have Battery Engineers Made?
Limitations in making progress with Engineering Better Batteries is that electric vehicles are being prevented to make progress in terms of size and range , progress which is made is solid state batteries.
What are solid state batteries?
A solid-state battery is a battery technology that uses solid electrodes and a solid electrolyte, instead of the liquid or polymer gel electrolytes which are found in lithium-ion or lithium polymer batteries.
While solid electrolytes were first discovered in the 19th century, several drawbacks have prevented it's widespread application. Developments in the late 20th and early 21st century have caused renewed interest in solid-state battery technologies, especially in the context of electric vehicles, starting in the 2010s.
Solid-state batteries can provide potential solutions for many problems of liquid Li-ion batteries, such as flammability, limited voltage, unstable solid-electrolyte interphase formation, poor cycling performance and strength.
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In the figure above, name the compound in diagram C.
a. 3-ethylpentane
b. 3-isoheptane
c. 3-methylpentane
d. diethylpentane
Answer:
C. a. 3-ethylpentane is a required answer
3-ethylpentane is the name of compound in diagram C. Therefore, the correct option is A.
An organic compound that belongs to the alkane family is 3-ethylpentane. It has an ethyl group [tex](-C_2H_5)[/tex] attached to the third carbon atom and is made up of a chain of five carbon atoms (pentane). 2,2-dimethylbutane is the formal IUPAC designation for 3-ethylpentane.
3-Ethylpentane is an alkane that demonstrates the typical properties of this group of substances. It is a saturated hydrocarbon, which means that there are only single bonds between the carbon atoms in it, making it a relatively inert substance. Alkanes are frequently present in petroleum and natural gas, and because to their characteristics, they form good fuels.
Therefore, the correct option is A.
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What is the number of chloride ions (Cl-) in 250 mL of a 0.2M magnesium chloride solution?
a. 0.1 mol c. 0.62 mol
b. 0.16 mol d. 1.6 mol
According to molar concentration and mole concept, there are 0.1 mole of chloride ions in 250 mL of a 0.2 M magnesium chloride solution.
What is molar concentration?Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.
In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters.
By substituting values in given formula, number of moles=0.2×0.250=0.05 moles .Now this values is subtracted from molar mass of magnesium chloride that is 95.211-0.05=95.161 moles which is finally divided by 95.211=0.999 which is approximately 0.10 mole.
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How is thermal energy transferred during conduction? Check all that apply.
1.Thermal energy is transferred between particles that are not touching each other.
2.Thermal energy is transferred between particles that are in direct contact with each other.
3.Thermal energy is transferred between objects of different temperatures.
4.Thermal energy is transferred between objects of the same temperature.
5.Thermal energy is transferred from slow-moving particles to fast-moving particles.
6.Thermal energy is transferred from fast-moving particles to slow-moving particles.
Answer:
Thermal energy is transferred between particles that are in direct contact with each other.
Thermal energy is transferred between objects of different temperatures.
Thermal energy is transferred from fast-moving particles to slow-moving particles.
Explanation:
1.5 billion plastic bottles are bought world-wide each day. These bottles are about 9.8 inches in length (1 meter = 3.28 ft). If the Earth's diameter is about 40,000 km at the equator, how many times could you encircle the Earth with the bottles laid end to end?
Hint: Your DA table should have 5 conversion factors
The number of times 1.5 billion plastic bottles laid end to end could encircle the Earth would be 9.34 times.
Dimensional analysisSize of bottle = 9.8 inches
1 foot = 12 inches
Size of 9.8 inches bottles in foot = 0.8167 ft
Also, 3.28 ft = 1 meter
0.8167 ft = 0.8167x1/3.28
= 0.2490 meter
1000 meter = 1 km
0.2490 meter = 0.2490/1000
= 0.000249 km
Total number of bottles = 1.5 billion
Total length of 1.5 billion bottles laid end to end in kilometers = 1,500,000,000 x 0.000249 = 373,500 km
Number of times the bottle could encircle the earth = 373,500/40000
= 9.34 times
Thus, 1.5 billion plastic bottles would encircle the Earth about 9.34 times if laid end to end.
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A city along the coast of the Atlantic Ocean experiences a seasonal high of 76°F in the summer. The city experiences a seasonal low of 23°F in the winter.
Another city is 60 miles inland and at the same latitude and elevation. This city will probably experience _______ summer highs and _______ winter lows.
Answer:
Warmer and cooler
Explanation:
The city which is along the coast of the Atlantic Ocean may experience a seasonal high of 76°F in summer. The city also has a seasonal low of 23°F in the winter. Another city is 60 miles inland and at the same latitude and elevation, this means that the city has cool winter lows and a warmer supper high.Answer:
warmer and cooler i just did it on study island
Explanation:
20. A compound's empirical formula is C,H,O. If the molecular mass of the compound is
162.2g, what is the molecular formula?
SECOND TIME POSTING NO LINKS PLEASE:)!
Answer:
Just use a text book.. So that you get the concept
What is the domain of the following function?
A) x < 15
B) x ≤ 4
C) x > 2
D) All Real Numbers
The domain of the function that has been shown are all real numbers. Option D
What is the domain of a function?Let us note that when we are talking about the domain of the function, we mean the areas that the function is able to have a value. We are also trying to define the areas where the actual value of the function can be determined.
It is normal that all the mathematical functions that we have must have a domain and a range. The domain of the function would depend on the kind of function that it is and that determines what its domain would be.
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Ca(OH)2 + 2HNO3 → Ca(NO3)2 + 2H2O
Answer: You have it right
Explanation:
you put the two on the H2O to make it 2H2O and A two on the HNO3 to make it 2HN03 To make it balanced, good job
Balancing chemical reactions, what is it and two examples!!
PLEASE HELP I NEED THE ANSWER!!!
Giving lots of POINTS
Answer:
A balanced chemical reaction is an equation where the number of atoms of each type in the response is the same on both reactants and product sides.
Explanation: Burning, and cooking are two examples. :)
Hope you are happy :)
Match the atoms to their correct electron configuration.
(Answer choices in photo)
Answer:
The answer to your questions are given below
Explanation:
The answer to the questions given above can simply be obtained by writing the electronic configuration of each atom.
The electronic configuration of each atoms can be written as follow:
Fluorine, F (9) => 1s² 2s²2p⁵
Sodium, Na (11) => [Ne] 3s¹
Helium, He (2) => 1s²
Calcium, Ca (20) => [Ar] s²
Nitrogen, N (7) => 1s² 2s²2p³
Sulphur, S (16) => [Ne] 3s²3p⁴
Which number represents the water table?
1
2
3
4
Answer:
2
Explanation:
the level below which the ground is saturated with water.
2
What is the water table zone?
The water table zone is right on the top of the saturated zone, and it's below the land surface. The depth of the water table variates going from near the surface or hundreds of meters below the land surface
Water Table Examples:
Aquifers. Three examples of water table aquifers are the Ogallala aquifer in the United States of America, the Great Artesian Basin in Australia, and the Lotikipi Basin Aquifer in KenyaLearn more about Water Table here
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PLEASE HELP!!
Please
How many bromine are in 6NaBr?
Name two elements, compounds and mixtures that are essential for living organisms. Also write why are they essential?
elements:
calcium : for strong bones
Iron : maintaining haemoglobin for metabolism
compunds
sodium chloride : to maintain blood pressure and other life processes
Adenosine Triphosphate: for metabolism, to maintain rate of inhalation and exhalation of oxygen and to supply energy
Mixture:
I) gasoline : used as fuel
ii) cement : used in construction
Answer:
Elements-
Oxygen is essential for living organisms to survive. Carbon dioxide is essential for the survival, growth and reproduction of living things. Plants obtain carbon from the atmosphere in the form of carbon dioxide, which they need for photosynthesis. They convert inorganic carbon into organic carbon in the form of sugar and starch, which they add to their tissues.Compounds-
Water is essential for living organisms to stay hydrated.Carbohydrate and protein- These compound are used to form new cells and tissues and to repair.Mixtures-
Blood is very much important for the transportation of oxygen in living organisms.Blood plasma is an example of a homogeneous mixture. This is a colourless fluid that holds the blood cells in suspension. It makes up a little more than half of the volume of human blood.someone please help!!
2 C4H10 + 13 O2 --> 8 CO2 + 10 H2O
Starting with 83.42 grams of Oxygen gas in excess C4H10, how much Carbon Dioxide can be created?
Box 1 = number
Box 2 = units
Box 3 = substance
Answer:
BOX 2
Explanation:
How many moles of a gas sample are in a 5.0 L container at 373 K and 203 kPa?
0.33 mole
0.66 mole
1.11 moles
3.05 moles
Answer:
0.33 moles.
Explanation:
Assuming the gas is ideal, we can solve this problem by using the following formula:
PV = nRTWhere:
P = 203 kPaV = 5.0 Ln = ?R = 8.314 kPa·L·mol⁻¹·K⁻¹T = 373 KWe input the data:
203 kPa * 5.0 L = n * 8.314 kPa·L·mol⁻¹·K⁻¹ * 373 Kn = 0.327 molThe answer is thus the first option, 0.33 moles.
Answer:
0.33 mole
Explanation:
An element is reduced while another element is oxidized. What is this? 1. Acid-base 2. Redox 3. Precipitation 4. Combustion
Answer:
2. Redox
Explanation:
A redox reaction is that in which an element is reduced while another element is oxidized. For example, let's consider the following redox reaction.
Fe + S ⇒ FeS
Fe is oxidized because it loses electrons to form Fe²⁺, while its oxidation number increases from 0 to 2+.
S is reduced because it gains electrons to form S²⁻, while its oxidation number decreases from 0 to 2-.
Water vapor _____.
keeps the Earth cool
exists mainly over the poles
traps heat and keeps the Earth warm
is a trace gas
Answer:
traps heat and keeps the Earth warm.
Which statement is true about the potential energy diagram for an endothermic reaction? (5 points)
The potential energy of the products is equal to the potential energy of the reactants.
It starts at a higher energy value and ends at a lower energy value.
The energy value remains the same throughout the diagram.
Products have more potential energy than reactants.
Answer:
Products have more potential energy than reactants.
As shown in the image.
What type of bond will form between nitrogen and bromine?
Answer:
Non-polar covalent bond
Explanation:
The bond between two nonmetal atoms is always covalent.
hope my answer helps you
Which of these is an example of a physical property?
A. Potassium ignites when placed in water.
B. Iron melts at 1,535 °C.
C. Hydrogen combines with oxygen to form water.
D. Chlorine oxidizes bacterial cells.
Answer: B is correct.
Explanation:
Answer A is a chemical change because of intense changes of color and expansion.
Answer C is a chemical change, as hydrogen and water are chemically bonding together.
Answer D is a chemical change because oxidation involves loss of electrons during a chemical reaction.
On the other hand, melting is a physical change. Therefore, answer B is the correct answer.
find out the, mass of 10^21 molecules of cu
Answer:
0.105 g
Explanation:
Since 1 Mole is 6.022 x 10^23 molecules. i.e 1.66 x 10^(-2) moles. = 0.105 Grams.
which of the following decreases with increasing atomic number in group 2
Answer: Ionization energy
Explanation:
Your welcome
A closed tank contains pure nitrogen gas at a pressure of 855
mmHg and a temperature of 26.3 °C. What would the pressure be
if the tank were heated to 1253 °C? (pay attention to units)
Answer:
If the tank were heated to 1253ºC, the pressure of the tank would be 40,734.41 mmHg.
Explanation:
Given that a closed tank contains pure nitrogen gas at a pressure of 855 mmHg and a temperature of 26.3ºC, to determine what the pressure would be if the tank were heated to 1253 ° C the following calculation must be performed:
26.3 = 855
1.253 = X
(1,253 x 855) / 26.3 = X
1,071,315 / 26.3 = X
40,734.41 = X
Therefore, if the tank were heated to 1253ºC, the pressure of the tank would be 40,734.41 mmHg.
Which of the following statements is/are incorrect regarding dilution of concentrated sulphuric acid?
Answer:
Option d) 3 only is the right answer
A sample of 4.0 L of nitrogen, at 1.2 atmospheres, is transferred to a 12 L container.
What will the pressure be in the new container?
(please show work)
Answer:
0.40 atm
Explanation:
P1V1 = P2V2
(1.2)(4.0) = P2(12)
P2 = 0.40 atm
Use Target Reading Skills After you read the section, reread the paragraphs that contain definitions of Key Terms. Use all of the information you have learned to write a meaningful sentence using each Key Term. a. chemical equation: