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10 Cards in this Set
- Front
- Back
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What are chemical reactions?
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making and breaking chemical bonds which changes the composition of matter
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What are reactants?
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The starting material of a chemical reaction`
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What are products?
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The result of a chemical reaction between two reactants.
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True or False: Matter is conserved in a chemical reaction.
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True. Reactions cannot create or destroy matter but can only rearrange it.
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True or False: Chemical reactions cannot be reversed.
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False. The products of another reaction may become the reactants.
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What is a factor that affects the rate of a chemical reaction?
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Concentration of reactants
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True or False: As products accumulate, reverse reactions become more frequent.
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True.
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What is a chemical equilibrium?
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When reactions off-set one another.
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True or False: Reactions stop when chemical equilibrium is reached.
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False. Reactions are still going on, but with no net effect on the concentrations of reactants and products.
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True or False: When chemical equilibrium is reached, the reactants and products are equal in concentration.
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False. Their concentrations have stabilized at a certain ration
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