Chemistry Exp. 1/ Investigation #1

10 Questions | By Valerie.aceves | Updated: Mar 21, 2022 | Attempts: 141

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Chemistry Exp. 1/ Investigation #1 - Quiz

Read each question carefully and completely before choosing your answer. You will have 30 minutes to complete this Quiz.

Questions and Answers

1.

Calculate the density of an object with a mass of 5 g and a volume of 12 mL. Would it sink or float in water? (The density of water is 1 g/mL). IN THE SPACE PROVIDED, SHOW HOW YOU CALCULATED YOUR ANSWER & WHETHER THE OBJECT WILL SINK OR FLOAT IN WATER.
2.

While burning coal and charcoal, you notice that coal releases more heat than charcoal. That means that the chemical potential energy is ________________ in charcoal than in coal.
- A.
  
  Lower
- B.
  
  Higher
- C.
  
  The same
3.

When you touch an ice cube, heat is transferred from[Blank] to[Blank]
4.

You have four water samples at different temperatures. In which sample are the molecules vibrating at the fastest speed?
- A.
  
  Water at 37^oC
- B.
  
  Water at 99 ^oC
- C.
  
  Water at 99 ^oF
- D.
  
  Water at 299 K
5.

In a chemistry experiment, the total energy contained in a system is 45 J. After the system undergoes a chemical reaction, the total energy in the system is 39 J. Which of the following statements is true?
- A.
  
  The surroundings lost 6 J
- B.
  
  The surroundings gained 6 J
- C.
  
  The surroundings did not lose or gain energy
- D.
  
  This is impossible as a system cannot lose energy
6.

You leave each of the following items outside on a hot, sunny day. Once the sun goes down, which item will cool off the fastest?
- A.
  
  Aluminum baseball bat
- B.
  
  Gold bracelet
- C.
  
  Wood bench
- D.
  
  Copper penny
7.

Which is an example of kinetic energy?
- A.
  
  An arrow in flight
- B.
  
  A ball right before it is dropped
- C.
  
  A warm bicycle chain
- D.
  
  A gallon of gasoline
8.

According to the law of conservation of mass, mass is __________________. Select ALL that apply.
- A.
  
  Conserved during chemical reactions
- B.
  
  Always conserved over time
- C.
  
  Conserved during physical transformations
- D.
  
  Never conserved