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Everyday Chemical Reactions Quiz

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What is the nature of a chemical change?

The initial substance disappears

The initial substance remains the same

The identity of the initial substance changes (correct)

The initial substance becomes invisible

How can we recognize that a chemical reaction has occurred?

When the substance becomes invisible

When a physical change occurs

When a chemical change occurs (correct)

When the substance disappears

What happens when food is cooked?

A chemical change occurs (correct)

The food disappears

The food becomes invisible

A physical change occurs

What happens when grapes get fermented?

<p>A chemical reaction occurs</p> Signup and view all the answers

What happens when we respire?

<p>A chemical reaction takes place</p> Signup and view all the answers

Everyday Chemical Reactions Quiz

Choose a study mode

Podcast

Questions and Answers

What is the nature of a chemical change?

How can we recognize that a chemical reaction has occurred?

What happens when food is cooked?

What happens when grapes get fermented?

What happens when we respire?

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