Answer:
Throughout the clarification section, the description of the situation is summarized.
Explanation:
Plant species mostly with such as photosynthesis have been providing us with just the very first food processing commodity.
They are always the component of the environment, the meals they consume, our clothing, and sometimes even our appliances, and plenty of other components or consumables. Seedlings often extract the greenhouse effect from either the environment, offer additional shelter for far too many species.6. The human arm, a bat's wing, a whale's flipper, and a horse's
foreleg are examples of
A. Analogous Structures
B. Homologous Structures
C. Vestigial Structures
D. Fossils
I
Which compound has only 1 single bond?
Group of answer choices
N2
CO2
Br2
Which are characteristics of electromagnetic waves? Check all that apply.
travel in straight lines and can bounce off surfaces
travel through space at the speed of light
travel only through matter
travel only through space
can bend around objects
move by particles bumping into each other
move by the interaction between an electric field and a magnetic field
"The characteristics of electro-magnetic travel in straight lines and have the ability to bounce off objects. Traveling at the speed of light can bend around moving objects due to the interplay of an electric and magnetic field."
What is electromagnetic wave?
Electromagnetic waves, or EM waves, are formed when an electric field as well as a magnetic field vibrate together. EM waves, in other terms, are magnetic and electric fields that oscillate.
What is Electromagnetic radiation?
Electromagnetic radiation is made up of electromagnetic field waves that travel over space and convey electromagnetic radiant energy. Radio waves, microwaves, infrared, light, ultraviolet, X-rays, and gamma rays are all examples. The electromagnetic spectrum includes all of these wavelengths.
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What is the mass of 0.0490 mole of potassium sulfate?
Answer:
8.54g
Explanation:
we know that: n=m/Mm
where:
n represents molesm represent massand Mm represents molar massrearrange for m: m= n x Mm
m= 0.0490mol x 174.259g/mol
m= 8.54g
How is wave technology used in medical field ?
Plz answer ASAP thank you
Need help I don’t understand this at all need to show my work and strategy it’s stoichiometry gram to gram please help
Answer:
781×10¯² g of MgCl₂.
Explanation:
The balanced equation for the reaction is given below:
Mg + 2HCl —> MgCl₂ + H₂
Next, we shall determine the mass of HCl that reacted and the mass of MgCl₂ produced from the balanced equation. This is illustrated below:
Molar mass of HCl = 1 + 35.5
= 36.5 g/mol
Mass of HCl from the balanced equation = 2 × 36.5 = 73 g
Molar mass of MgCl₂ = 24 + (35.5×2)
= 24 + 71
= 95 g/mol
Mass of MgCl₂ from the balanced equation = 1 × 95 = 95 g
SUMMARY:
From the balanced equation above,
73 g of HCl reacted to produce 95 g of MgCl₂.
Finally, we shall determine the mass of MgCl₂ produced by the reaction of 6 g of HCl. This can be obtained as follow:
From the balanced equation above,
73 g of HCl reacted to produce 95 g of MgCl₂.
Therefore, 6 g of HCl will react to produce = (6 × 95)/73 = 781×10¯² g of MgCl₂.
Thus, 781×10¯² g of MgCl₂ were obtained from the reaction.
2. How might this population suddenly increase? How might this affect the ecosystem? (for tropical savannah.)
Explanation:
it can suddenly increase when more and more people have babies and the infant rate goes up. and how it might affect the ecosystem is the pollution that people give off.
Answer:
Explanation:
Due to less predators in the Savannah/habitat, the population could unexpectedly grow. This will have an impact on the environment because it will give rise to more prey as there will be fewer predators. If too many herbivores are present on one feeding site, competition for food will occur. If there are more plants in an area than normal, it can increase the population of animals that consume the plant. If the population of one animal rises, the population of animals that consume that animal could also rise.
Population growth isn't always good. A population may often grow too big to sustain the climate. Other modifications in limiting variables can cause a population to decline. The population will decrease if a population becomes diseased, and the population of animals that consume the diseased animals will decrease as well. Populations in nature typically balance themselves. Sometimes, they can't always restore a natural balance as man affects populations.
A careless student forgets to label one of their reagent containers. They know it contains one of the following solutions: 0.1 M NaCl, 0.1 M Ca(NO3)2, 0.1 M KCH3COO The student decides to add some 0.1 M Pb(NO3)2 to a sample of the reagent in question. Upon stirring, a white precipitate formed. Which of the possible solutions was present in the unlabeled container based on this observation
Answer:
He kinda lazy ngl
Explanation:
Rgheeghfgufugf
How many atoms are in 34 g of Cu?
Answer:
Babygirl these are double DD'S
Explanation:
OooOOO I'm hurt oh my neck my neck and my back
How long did it take a bike to travel 20 miles at 12 mph
Answer: 4 miles
Explanation:
Riding the bike 12 mph (miles per hour) for one hour, we would ride the bike 12 miles. Since 20 minutes is 1/3 of a hour, divide 12 by 3 to find out how far the biker traveled in 1/3 of the time: 4 miles Hope this helps
Hello!
[tex]\large\boxed{\frac{5}{3}\text{ hours} \text{ or }100 \text{ min}}[/tex]
Use the equation d = s · t where:
s = speed
t = time
d = distance
Plug in the given distance and speed:
20 = 12 ·t
Divide both side by 12 to isolate for t:
20/12 = t
Simplify:
5 / 3 = t
Therefore, it took 5/3 hours to bike. We can convert this to minutes if necessary:
5/3 · 60 min (in one hour) = (60 · 5) / 3 = 100 min.
Which stimulus causes a porcupine to extend its quills?
lunar effect on Earth
seasonal temperature changes
threatening behavior by predators
environmental encroachment by humans
True or False: The ocean is an example of a carbon reservoir (carbon sink).
True
False
Answer:
A TRUEEEEEEEE
Explanation:
stoichiometry is hawd
Using the following reaction:
C12H22O11 + 12 O2 → 12CO2 + 11H2O + energy
How many grams of carbon dioxide, CO2, are produced from metabolizing 448g sucrose?
691 g CO₂
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
Reading a Periodic TableMolesOrganic
Organic Compounds CₓHₙStoichiometry
Using Dimensional AnalysisAnalyzing Reactions RxNExplanation:Step 1: Define
[RxN - Balanced] C₁₂H₂₂O₁₁ + 12O₂ → 12CO₂ + 11H₂O + Energy
[Given] 448 g C₁₂H₂₂O₁₁ (sucrose)
[Solve] grams CO₂ (carbon dioxide)
Step 2: Identify Conversions
[RxN] 1 mol C₁₂H₂₂O₁₁ → 12 mol CO₂
[PT] Molar Mass of C - 12.01 g/mol
[PT] Molar Mass of H - 1.01 g/mol
[PT] Molar Mass of O - 16.00 g/mol
Molar Mass of C₁₂H₂₂O₁₁ - 12(12.01) + 22(1.01) + 11(16.00) = 342.34 g/mol
Molar Mass of CO₂ - 12.01 + 2(16.00) = 44.01 g/mol
Step 3: Stoich
[DA] Set up conversion: [tex]\displaystyle 448 \ g \ C_{12}H_{22}O_{11}(\frac{1 \ mol \ C_{12}H_{22}O_{11}}{342.34 \ g \ C_{12}H_{22}O_{11}})(\frac{12 \ mol \ CO_2}{1 \ mol \ C_{12}H_{22}O_{11}})(\frac{44.01 \ g \ CO_2}{1 \ mol \ CO_2})[/tex][DA] Multiply/Divide [Cancel out units]: [tex]\displaystyle 691.119 \ g \ CO_2[/tex]Step 4: Check
Follow sig fig rules and round. We are given 3 sig figs.
691.119 g CO₂ ≈ 691 g CO₂
1. A 25.0-mL sample containing Cu2 gave an instrument signal of 25.2 units (corrected for a blank). When exactly 0.500 mL of 0.0275 M Cu(NO3)2 was added to the solution, the signal increased to 45.1 units. Calculate the molar concentration of Cu2 assuming that the signal was directly proportional to the analyte concentration.
Answer:
6.83x10⁻⁴M is the initial concentration of the Cu²⁺
Explanation:
The concentration is directly proportional to the signal (Beer-Lambert law).
The increase in concentration produce an increase in signal of:
45.1 units - 25.2 units = 19.9 units.
The increase in concentration is of:
0.500mL = 5x10⁻⁴L * (0.0275mol / L) = 1.375x10⁻⁵moles / 0.0255L = 5.39x10⁻⁴M
The conversion factor is 5.39x10⁻⁴M = 19.9 units
That means the initial concentration that produce a signal of 25.2 units is:
25.2 units * (5.39x10⁻⁴M / 19.9 units) =
6.83x10⁻⁴M is the initial concentration of the Cu²⁺Please answer this for 15 points
When naming an ionic compound, which comes first, the metal or nonmetal?
Answer:
Explanation:
When naming binary ionic compounds, name the non-metal anion first
When naming an ionic compound, the name of the metal comes first.
An ionic compound is composed of a metal and a nonmetal. Usually, the metal forms the positive ion while the nonmetal forms the negative ion.
When naming an ionic compound, the name of the metal is mentioned first followed by the name of the nonmetal.
For example, when naming an ionic compound that contains sodium and chlorine, the name is sodium chloride.
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A student increases the temperature of a 200 cm3 balloon from 60°C to 100 °C.
What will the new volume of the balloon be? Round your answer to one decimal
point.
(to convert Celsius to Kelvin, add 273.15)
Answer?
Answer:
178.56 cm3
Explanation:
V1/T1=V2/T2
V2=V1T1/T2
V1 (volume) is 200 cm3
T1 (temperature) is 60°C but convert into Kelvin
T2 (temperature) is 100 °C but convert into Kelvin
Plug in the values...
V2= (200 cm3)(60+273.15)/ (100+273.15)
V2=178.56 cm3
Answer:
178.56 cm3
Explanation:
How does an atom become a positively charged ion?
The diagram below shows part of the rock cycle.
Science, Middle school`
Which type of rock does C represent?
A. Igneous Rock
B. Rock formed by cooling
C. Rock formed by heat and pressure
D. Sedimentary Rock
I searched what each rock is called and looks like but I don't which on it is because they kinds all look the same.
Answer:
c
Explanation:
C represents C. Rock formed by heat and pressure.
What is a metamorphic rock?Metamorphic rocks are often squished, smeared out, and folded. regardless of those uncomfortable conditions, metamorphic rocks do not get warm sufficient to melt, or they would end up igneous rocks! common Metamorphic Rocks: common metamorphic rocks include phyllite, schist, gneiss, quartzite, and marble.
Metamorphic rock is any of a class of rocks that result from the alteration of preexisting rocks in reaction to changing environmental situations, such as variations in temperature, strain, and mechanical stress, and the addition or subtraction of chemical components.
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A clear colourless liquad that can be spilt into two gasses into different properties
Solve the equation by first using the Quadratic Formula and then by factoring.
x2 – 14x + 48 = 0
Balance the following reaction _Na+_O2=Na2O
What does the equation A + BC to B + AC represent
Displacement reactions
You have a 95% EtOH stock solution and want a 70% EtOH solution for sterilization purposes. If you want a final volume of 250 mL, how much 95% EtOH must you add, and how much water must you add
Answer:
65.8mL of water and 184.2mL of the 95% EtOH stock solution must be added.
Explanation:
To solve this question we need to find hoy many times the 95% EtOH must be diluted to obtain a 70% EtOH solution. That is:
95% / 70% = 1.357 times the solution must be diluted.
If we want to make 250mL of the diluted solution, the amount of 95% that must be added is:
250mL / 1.357 times =
184.2mL of the 95% solution must be added
And of water:
250mL - 184.2mL = 65.8mL of water
In baseball home run hitters usually use a heavy bat. According to the formula for momentum why is that important
Answer:
The data shows that a heavier bat produces a faster batted ball speed. This makes intuitive sense since a heavier bat brings more momentum into the collision. ... So, using a heavier bat should result in faster hit balls, which means the hit ball will travel farther.
Explanation:
Would you expect the amount of heat (q, in J) released or absorbed for the dissolution of 4 g of NH4NO3(s) in 50.0 g of water to be greater than, less than, or equal to, the amount of heat released or absorbed for the dissolution of 2 g of NH4NO3(s) in 50.0 g of water
Answer:
Greater
Explanation:
This is because , 4 g of NH4NO3(s) contains more number of moles than 2 g of NH4NO3(s). Since the amount of heat (q, in J) released or absorbed for the dissolution is measured in kJ/mol, the higher the number of moles , the higher the amount of energy released. Since 4 g of NH4NO3(s) contains more number of moles than 2 g of NH4NO3(s), it will thus release or absorb more heat. So, the amount of heat is greater.
Since 4 g of NH4NO3(s) contains more moles than 2 g of NH4NO3(s), it will thus absorb more heat showing that the amount of heat is greater.
Balancing chemical reactionFrom the given information, we are to determine whether the amount of heat released or absorbed is greater or lesser.
From the question, 4 g of NH4NO3(s) contains more moles than 2 g of NH4NO3(s).We must also know that the higher the number of moles of a compound, the higher the amount of energy releasedSince 4 g of NH4NO3(s) contains more moles than 2 g of NH4NO3(s), it will thus absorb more heat showing that the amount of heat is greater.
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If it takes 3.5 hours for the Hogwarts Express, moving at a speed of 120 mi/hr, to it make it from Platform
9 and ¾ to Hogwarts, how far apart are they?
Answer:
3/4 miles
Expanation:Because 9+3/4 is 3/4 miles
how many molecules of sugar are in 4.67 miles of sugar?
What can you conclude about the above reaction? * (1 Point)
•It needs air
•It releases heat.
•It releases light
•It absorps heat
Hello I'm really in a rush this is due tonight, please help I'd really appreciate it if one of you guys answer this, (I hope you guys can help me)
Answer:
caloricenergylivingmatterkinetic, particleheat, jouleshope this helps :)