starting substance in a chemical reaction

changes in matter

Which of the following indicates that a chemical change has happened during cooking?

Which of the following is NOT an example of a physical change?

How does a catalyst affect chemical change?

The total mass of the reactants equals the total mass of the products.

Which of the following is true for all chemical reactions?

a substance formed in a chemical reaction

When paper turns yellow-brown upon exposure to sunlight, what type of change is likely taking place?

Check the composition of the sample before and after the change.

What must be done to be certain that a chemical change has taken place?

There must be a change in chemical properties.

What must occur for a change to be a chemical reaction?

Which of the following processes does NOT involve a change in chemical properties?

Study with Quizlet and memorize flashcards containing terms like starting substance in a chemical reaction, Which of the following indicates that a chemical change has happened during cooking?, Which of the following is NOT an example of a physical change? and more.

changes in matter Flashcards

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