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Questions and Answers
Which of the following best describes a chemical reaction?
Which of the following best describes a chemical reaction?
- A process where atoms remain unchanged
- A process where atoms combine to form new molecules
- A process where atoms disappear
- A process where atoms break their chemical bonds to form new ones (correct)
What is the relationship between reaction rate and time?
What is the relationship between reaction rate and time?
- Reaction rate is not related to the time it takes for reagents to be transformed into new products
- Reaction rate is related to the time it takes for reagents to be transformed into new products (correct)
- Reaction rate is directly proportional to the mass of the reagents involved
- Reaction rate is inversely proportional to the time it takes for reagents to be transformed into new products
What is an example of a slow chemical reaction in the human body?
What is an example of a slow chemical reaction in the human body?
- Reactions related to muscle movement
- Reactions involved in respiration
- Reactions related to aging (correct)
- Reactions involved in digestion
Reagents are transformed into products during a chemical reaction.
Reagents are transformed into products during a chemical reaction.
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A chemical reaction is represented by a specific equation.
A chemical reaction is represented by a specific equation.
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Products are substances that are present before the reaction.
Products are substances that are present before the reaction.
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