CHEMISTRY HIGH SCHOOL

Which of the examples represent potential energy A candy bar Wind A stretched rubber band Rowing a boat A ball rollinv down a hill A roller coaster at the top of a hill

Answers

Answer 1

Answer:

The examples that represent potential energy are:

A. A candy bar

B. A stretched rubber band

D. A roller coaster at the top of a hill

What is Potential energy?

It is the stored energy in any object or system by virtue of its position or arrangement of parts. This energy depicts zero motion or movement unlike kinetic energy. For example : A candy bar, stretched rubber band and roller coaster at the top of a hill all indicate positions without any said explanation of movement.

Thus, correct options are A, B and D.

Find more information about Potential energy here:

brainly.com/question/24933254

Answer 2

Answer:

A candy bar

A stretched rubber band

A roller coaster at the top of a hill

Explanation:

Potential energy is the energy present as a result of the position of an object. This energy depicts zero motion or movement unlike kinetic energy.

A candy bar, stretched rubber band and roller coaster at the top of a hill all indicate positions without any said explanation of movement.

The other option choices depicts a type of movement .This is why the three option choices are correct in this scenario.

Related Questions

Many breads arc made by adding yeast to dough, causing the dough to rise. Yeast is a type of microorganism that produces the catalyst zymase, which converts glucose, C6H12O6' to ethanol and carbon dioxide gas. The balanced equation for this reaction is shown below.C6H12O6(aq) 2 C2H5OH(aq) + 2 CO2(g) 73 Draw a structural formula for the ethanol formed during this reaction. 74 Describe how the catalyst, zymase, speeds up this reaction. 75 Determine the total mass of ethanol produced when 270. grams of glucose reacts completely to form ethanol and 132 grams of carbon dioxide.
What is the atomic mass of w
If 200.0 g of copper(II) sulfate react with an excess of zinc metal, what is the theoretical yield of copper?
Acid rain is caused by human activity. true or false?
The element in Period 4 and Group 1 of the Periodic Table would be classified as aA. metalB. metalloidC. nonmetalD. noble gas

What are ionic compounds typically composed of?a metal anion and a nonmetal cation

two metal anions

a metal cation and a nonmetal anion

two nonmetal cations

Answers

ionic compounds are held together by ionic bonds are formed by the transfer of electrons from a metal to a non metal

Ionic bond is formed by the electrostatic attraction between the oppositely charged ions.

metals give out electrons and becomes positively charged. positively charged ions are called cations. so these are called metal cations

the electrons given out are taken in by non metals and become negatively charged. negatively charged ions are called anions. then they are called non metal anions.

so ionic compounds are formed by the electrostatic attraction between metal cations and non metal anions.

therefore ionic compounds are composed of a metal cation and a nonmetal anion

Ionic compounds are typically composed of a metal cation and nonmetal anion.

A drop of vinegar ( a weak acid ) is placed on a sample of each of the materials below. Which will show the most active reaction? A. glass
B. marble
C. copper
D. steel

Answers

Answer: Option (B) is the correct answer.

Explanation:

Marble is also known as calcium carbonate and its chemical formula is $CaCO_(3)$ .

When it combines with vinegar then it results in the formation of calcium acetate which is a water soluble compound along with the release of carbon dioxide which occurs in the form of bubbles and water.

The reaction is as follows.

$CaCO_(3) + CH_(3)COOH \rightarrow Ca(CH_(3)COOH)_(2) + H_(2)O + CO_(2)$

Whereas vinegar being a weak acid will not react with glass, copper and steel.

Answer: B

Explanation: I got it right on my test

Brainliest?

The following reaction does not proceed to a product: H2O + Cu --> no reaction. Why is that? a.Copper has a lower activity than hydrogen and cannot replace it.
b.The reaction cannot occur because water is a reactant.
c.Copper has a higher activity than hydrogen and cannot replace it.
d.The reaction proceeds too slowly to create products.

Answers

I think the correct answer would be because copper has a lower activity than hydrogen and cannot replace the bonds in it. Substances that are not oxidizing do not react with copper since the redox potentials are very low. Hope this answers the question.

The reason why H₂O +Cu does not proceed to a product is that

copper has a lower activity than hydrogen and cannot replace it (answer A)

Explanation

Replacement reaction is type of a reaction in which element react with compound and take place of another element in that compound.

That is the more reactive element replaces the less reactive element from it's compound.

Since H₂ is more reactive than Cu in reactivity series therefore no reaction occur between H₂O +Cu since Cu cannot replace H₂ from its compound.

Which has should only be produced in a fume hood?a. Cl2
b. CO2
c. H2
d. H2O

Answers

The gas that should only be produced in a fume hood is a. Cl2.
Chlorine gas is toxic gas. Upon inhalation, it irritates the pulmonary tract and damages the respiratory tract. Both short term and long term exposure to Cl2 gas are known to have destructive effects.

Please help brainiest.

Answers

I will go with 18 bc if you think what I thinking I will go with 18 for sure my final answer

Which best describes the function of a centrifuge?to separate the solute from the solvent
to separate the dissolved part of a solution into layers
to separate a mixture by heating it for a long period of time
to separate the undissolved particles of a mixture into layers

Answers

The correct answer is the last statement. Centrifugation is to separate the undissolved particles of a mixture into layers. It separates a homogeneous mixture by spinning it at high speeds. The precipitate settles at the bottom while the solution is clear.

The correct answer is the last answer choice

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A catalyst works by(1) increasing the potential energy of the reactants(2) increasing the energy released during a reaction(3) decreasing the potential energy of the products(4) decreasing the activation energy required for a reaction