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S806B - Chemical Changes & Chemical Properties

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Last updated about 5 hours ago
16 questions
8
1
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1
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6
7
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Question 1
1.
Question 2
2.
Question 3
3.

What happens during a chemical change?

Question 4
4.

Which of the following is an example of a chemical change?

Question 5
5.

Which of the following is a physical change?

Question 6
6.

What is a clue that indicates a chemical change?

Question 7
7.

Which of the following is NOT a characteristic of a physical change?

Question 8
8.

When sugar dissolves in water, it is an example of a

Question 9
9.

Which of the following is NOT a characteristic of a chemical change?

Question 10
10.

The materials on the left are the materials before a chemical change. The materials on the right are materials after a chemical change. Match each material on the left to the one on the right that shows the before and after parts of each change.

Draggable itemarrow_right_altCorresponding Item
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Question 11
11.

Sort each example into the correct category according to how it reacts to oxygen.

  • coal
  • A glass bottle
  • an iron nail
Question 12
12.

What is the meaning of "chemical change?"

Question 13
13.

What is the meaning of " chemical property"?

Question 14
01:30
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2
Question 14
14.

What is one of the ways a scientist knows that a chemical change has occurred?

Question 15
06:54
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Question 16
08:52
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Oxygen and Iron
carbon dioxide only
Food Molecules and Oxygen
Food Molecules and Oxygen
Carbon Dioxide and Water
Aluminum Oxide
Charcoal and Oxygen
Water and Carbon Dioxide
Hydrogen and Oxygen
Water Only
Aluminum and Oxygen
Rust
salt water
dry firewood
gasoline
a copper penny
Reacts Quickly with Oxygen
Reacts Slowly with Oxygen
Do not React with Oxygen
Question 15
15.

What do you think will happen if enough carbon dioxide gas is created?

Question 16
16.

Explain why the balloon is now inflated. Be sure you explain the complete process!!