Test 3 Review

1. What should you do in lab?

• Eat and drink
• Hang out with with my friends in another station
• Listen to all instructions before doing anything

2. What lab equipment is this?

• Beaker
• Erlenmeyer Flask
• Test Tube

3. How many significant figures does 87 have?

• 1
• 2
• 3

4. What is the scientific notation for 853000000?

• 8.53x10^8
• 853x10^6
• 85.3x10^7

5. How many kilometers are in 2000 meters?

• 0.2000
• 0.2
• 2

6. What is Endothermic?

• releasing heat
• absorbing heat
• releasing cold

7. What is Exothermic?

• releasing heat
• absorbing heat
• releasing cold

8. What does the Q mean in the equation Q=mct?

• Change in Temperature
• Mass
• Energy Transfer

9. A substance with particles that vibrate but stay in the same position is a ___.

• Solid
• Liquid
• Gas

10. Neutrons have a ____ charge?

• Positive
• Neutral
• Negative