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Science Quick Check. 1 Correct Answer Per Question. For Question 1, Pick 2 correct answers. idk how much for question 2 to pick but pick as many correct as you can with Question 2.

1. Which of the following could provide definitive evidence of a chemical reaction? Choose two correct answers.
a. A new substance, rust, has formed.
b. Liquid water has frozen to form ice.
c. A new substance, oxygen gas, has formed.
d. A solid has dissolved in a liquid.

2. Place each change in the column that correctly identifies it as a chemical change or a physical change. (Drag and drop phrases into the correct columns.)

CHEMICAL CHANGES
1st Chemical Changes. What all goes in here?

2. PHYSICAL CHANGES What belongs here?
A. Boiling Water

B. Neutralizing Acid

C. Baking Cake

D. Breaking Glass

E. Rusting Iron

F. Evaporating Water

1 answer

1. Which of the following could provide definitive evidence of a chemical reaction? Choose two correct answers.

Correct Answers: a. A new substance, rust, has formed.
c. A new substance, oxygen gas, has formed.

2. Place each change in the column that correctly identifies it as a chemical change or a physical change.

CHEMICAL CHANGES

  • B. Neutralizing Acid
  • C. Baking Cake
  • E. Rusting Iron

PHYSICAL CHANGES

  • A. Boiling Water
  • D. Breaking Glass
  • F. Evaporating Water