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- 1. Multiple Choice
Oxidation in English
Rust
Reaction
Break
Products
- 2. Multiple Choice
Combustion in English
Burn
Oxidize
Chemical Equation
Break
- 3. Multiple Choice
What is the evidence of a chemical change in this photo?
Produce Bubbles
Solid dissolves
Burns
Melts
- 4. Multiple Choice
Dissolving a solid in a liquid is ______.
physical change
chemical change
burning
precipitate
- 5. Multiple Choice
He is _________ the chemical.
smelling
changing
burning
dissolving
- 6. Multiple Choice
Melting ice is a physical change because
liquid water and ice are the same material. H2O
it produces gas bubbles.
it produces heat.
water changes to water vapor.
- 7. Multiple Choice
Yellow, Brilliant, Solid, Metal. These are some ______ of gold.
Properties
Changes
Reactants
Compounds
- 8. Multiple Choice
A chemical reaction....
produces a new substance.
needs heat to occur.
makes a substance smaller.
products and reactants have same properties.
- 9. Multiple Choice
This is called a ____.
chemical equation
physical change
properties
boiling of water.
- 10. Multiple Choice
In this chemical reaction carbon dioxide and water are called
reactants
properties
products
mixing
- 11. Multiple Choice
What is produced in this chemical reaction?
Sugar and Oxygen
Light and water
Carbon dioxide and water
Light and Sugar
- 12. Multiple Choice
Which gives hydrogen (H) atoms to produce sugar (C6H12O6) is from?
water (H2O
carbon dioxide (CO2
light
oxygen (O2)
- 13. Multiple Choice
Which of the following is NOT evidence of a chemical reaction?
Color changes
Changing shape
Light is produced
Gas is formed
- 14. Multiple Choice
Hydrogen and oxygen atoms ________ together to form the compound water.
bond
break
melt
dissolve
- 15. Multiple Choice
A chemical reaction breaks bonds and reorders atoms to form new substances.
True
False
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