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tamaranim1 [39]
3 years ago
12

Which statement best describes the work and energy in these examples?

Chemistry
2 answers:
Tpy6a [65]3 years ago
5 0

Answer:

The 4th statement best describes

Explanation:

marta [7]3 years ago
4 0

Answer:

2

Explanation:

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What is a solvent using your own words
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a substance that dissolves another to form a solution: Water is a solvent for sugar.

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Increasing the temperature of a chemical reaction increases the reaction rate. Write a statement that explains why this happens.
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when a chemical reaction hits something that is atleast 10 degrees or higher than the molecules involved are moving quicker which makes more chemical reactions- hope this helps!!:]

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We saw in the calorimeter experiment that the combustion of a fuel is exothermic. what can you then say about the formation of a
ankoles [38]

Answer:

This question appear incomplete

Explanation:

This question appear incomplete. However, fuel is formed through a natural phenomenon involving the conversion of large amount dead and decayed organisms (usually algae and zooplanktons) to combustible fuel through exposure to relatively high temperature and pressure (over millions of years) in the earth's crust. Thus, since this involves a sort of absorption of heat energy (from the earth's crust), it can be referred to be an endothermic reaction.

8 0
2 years ago
If a 67.3G rock is dissolved in 2.00L of acid, what is the molar concentration of gold in the acid solution
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Answer:

[Au] = 0.171 M

Explanation:

For this question, we assume the rock is 100 % gold.

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Molar concentration is defined as the moles of solute, contained in 1L of solution.

Our solution volume is 2L.

M = 0.342 mol / 2L = 0.171

Molar concentration, also called molarity of solution is the most typical unit of concentration.

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No caso da pessoa ser um atleta profissional,essa demanda de energia pode subir até 5400Kcal. Transforme essa medida de energia
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If you speak Any English i Think I will be able to help you Los Amigo

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