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8.5 D & E Pre-test

Last updated about 3 years ago
10 questions
Note from the author:
8.5 D-E: Pretest on Elements vs Compounds (6th), Chemical Formulas, and Chemical vs. Physical Change (6th/7th)
Required
6

Sort the following as either an ELEMENT or a COMPOUND

  • Oxygen
  • Water
  • Gold
  • Sugar
  • ELEMENTS
  • COMPOUNDS
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2

Idenitfy which of the following describe a compound. Choose ALL that apply.

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3
In the chemical formula above, there are _______ atoms of Calcium, _______ atoms of Carbon, and _______ atoms of oxygen.
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1

How many TOTAL ATOMS are in this compound?

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1

How many ELEMENTS are in this compound?

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1

How many ATOMS of HYDROGEN (H) in this compound?

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3

Select all examples of chemical changes.

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1

Which of the following groups contains only examples of physical changes?

1

A chemical change can best be defined as...

Required
4

Look at each situation and determine whether it is an example of a physical change or a chemical change:

Physical Change
Chemical Change
No change takes place
Cake batter to cake
Dissolving drink powder into water
Rubbing alcohol evaporates
Fireworks exploding