Powers Assessment PS 1-2

First & Last Name

1. What are the signs of a chemical reaction?

• gas production
• cannot easily be reversed
• color change
• odor
• all of the above

2. Change in state of matter is

• a chemical change
• a physical change
• a permanent change
• unchangeable

3. The ingredients in a chemical reaction are called the

• products
• ingredients
• reactants
• samples

4. When using chemicals in a lab, you should

• wear gloves
• wear safety goggles
• follow directions
• waft instead of inhaling deeply
• all of the above

5. Which of these are an example of a chemical reaction?

• metal rusting
• breaking down of food in your digestive system
• photosynthesis
• all of the above

6. What is the substance created by a chemical reaction called?

• reactant
• product
• resultant
• summation

7. When observing a reaction between two substances, you want to look at

• The product only
• The properties of the ingredients
• The properties of the substance before and after
• None of the above

8. Which type of chemical reaction is represented by AB → A + B?

• Synthesis
• Decomposition
• Single replacement
• Combustion

9. In which type of chemical reaction is carbon dioxide and water always in the product?

• Synthesis
• Decomposition
• Single replacement
• Combustion