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S806B - Chemical Changes & Chemical Properties

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Last updated about 1 month ago
16 questions
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Question 1
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Question 2
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Question 3
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Question 4
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Question 5
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Question 6
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Question 7
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Question 8
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Question 9
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Question 10
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Question 11
11.

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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Question 15
06:54
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Question 16
08:52
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What happens during a chemical change?
The particles of two or more substances are rearranged to form a new substance
The shape or size of an object changes
The state of a substance's matter changes
The change can be undone
Which of the following is an example of a chemical change?
Mixing butter, sugar, flour, and eggs
Melting ice to form water
Burning wood to form ash
Which of the following is a physical change?
Baking a cake
Rusting metal
Digesting food
Evaporating water
What is a clue that indicates a chemical change?
Changing the shape or size of an object
Changing the state of a substance's matter
Forming a new substance
Being able to undo the change
Which of the following is NOT a characteristic of a physical change?
Changing the state of a substance's matter
Producing light
Releasing gases
Being able to undo the change
When sugar dissolves in water, it is an example of a
Chemical change
Physical change
Both chemical and physical change
Neither chemical nor physical change
Which of the following is NOT a characteristic of a chemical change?
Absorbing or releasing heat
Changing color
Producing an odor
Changing the shape or size of an object
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.
Aluminum and Oxygen
carbon dioxide only
Charcoal and Oxygen
Food Molecules and Oxygen
Hydrogen and Oxygen
Aluminum Oxide
Oxygen and Iron
Water and Carbon Dioxide
Food Molecules and Oxygen
Water Only
Carbon Dioxide and Water
Rust
Sort each example into the correct category according to how it reacts to oxygen.
a copper penny
A glass bottle
an iron nail
salt water
coal
dry firewood
gasoline
Reacts Quickly with Oxygen
Reacts Slowly with Oxygen
Do not React with Oxygen
Question 14
14.

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

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!!