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Questions and Answers
What type of change occurs when coal is burned?
What type of change occurs when coal is burned?
Frying an egg represents a physical change.
Frying an egg represents a physical change.
False
What happens to the temperature of the surroundings during an explosion when energy is transferred?
What happens to the temperature of the surroundings during an explosion when energy is transferred?
The temperature increases.
In a chemical reaction, bonds between atoms in the reactants are ______.
In a chemical reaction, bonds between atoms in the reactants are ______.
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Match the following gas pressure concepts with their descriptions:
Match the following gas pressure concepts with their descriptions:
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What type of change occurs when solid wax is heated until it becomes liquid?
What type of change occurs when solid wax is heated until it becomes liquid?
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The rearranging of molecules is a characteristic of physical changes.
The rearranging of molecules is a characteristic of physical changes.
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What physical change occurred before the explosion illustrated in photo C?
What physical change occurred before the explosion illustrated in photo C?
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