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siniylev [52]
3 years ago
12

What does it mean to be an exothermic chemical reaction? a) Energy is released when no new substances are made. b) Energy is rel

eased when new substances are made. c) Energy is absorbed when no new substances are made. d) Energy is absoebed when new substances are made. e) None of the choices are correct.
Chemistry
1 answer:
mario62 [17]3 years ago
3 0

Answer:b

Explanation:

Energy is released to form the product

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What does the concentration of reactants to affect the reaction rate
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Higher concentrations of reactants = More collisions between molecules = More possible reactions between the molecules = Higher reaction rate

<h3>What is concentration?</h3>

A solution is made up of two components, solute and solvent. In chemistry, we define the concentration of solution as the amount of solute dissolved in the solution.

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