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1. Intro to General Chemistry

Physical & Chemical Changes

1. Intro to General Chemistry

Physical & Chemical Changes

Multiple Choice
Which of the following statements about the changes food undergoes during cooking is correct?
Multiple Choice
What happens at the molecular level when sugar dissolves in water?
Multiple Choice
Which of the following is an example of qualitative data in the classification of matter?
Multiple Choice
Which of the following best describes the difference between evaporation and transpiration?
Multiple Choice
Which of the following is a physical change?
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Multiple Choice
Which of the following represents a reversible change?
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Multiple Choice
In the solid state, __________ .
Multiple Choice
Which of the following is an example of a chemical change?
Open Question
In physical changes, substances might change in ________ but not in ________.
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Open Question
Which best explains why making a pancake from batter is an example of a chemical change?
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Open Question
Where are chlorofluorocarbons found?
A. Coolants
B. The atmosphere
C. Solvents
D. All of the above
Open Question
When substances go through chemical changes, which of the following will always happen?
Open Question
When baking soda and vinegar react, the surface bubbles. What does this most likely indicate?
Open Question
Which property of physical changes explains why matter is conserved in a physical change?
Open Question
If there are 8 g of a substance before a physical change, how much will there be afterwards?