Chemistry A Post Quiz: 50 Points

10 Questions | By Shaun_horton | Updated: Mar 22, 2022 | Attempts: 73

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This quiz is worth 50 points. There are 10 questions. Each question is worth 5 pts. You can ONLY take this quiz twice.

Questions and Answers

1.

A description of how close a measurement is to the true value of the quantity measured. (AZ HS Science S1:C2:PO3)
- A.
  
  Accuracy
- B.
  
  Liter
- C.
  
  Kilogram
- D.
  
  Energy
2.

A possible explanation of an observation that can be tested by scientific investigations is a(an) ____________________________. (AZ HS Science S1:C2:PO2)
- A.
  
  Inference
- B.
  
  Explanation
- C.
  
  Hypothesis
- D.
  
  Science
3.

When matter moves from a gas to a liquid it is called _____________________. (AZ HS Science S5:C1:PO1)
- A.
  
  Sublimation
- B.
  
  Condensation
- C.
  
  Deposition
- D.
  
  Density
4.

A change in a substance that involves a change in the identity of the substance is _________________. (AZ HS Science S1:C5:PO2)
- A.
  
  Chemical Change
- B.
  
  Phase Change
- C.
  
  Physical Property
- D.
  
  Physical Change
5.

Sodium is a/an: (AZ HS Science S5:C1:PO4)
- A.
  
  Element
- B.
  
  Compound
- C.
  
  Homogeneous mixture
- D.
  
  Heterogeneous mixture
6.

Which of the following is not a fundamental particle in an atom? (AZ HS Science S5:C1:PO6)
- A.
  
  Electron
- B.
  
  Element
- C.
  
  Neutron
- D.
  
  Proton
7.

What is a negatively charged particle in an atom called? (AZ HS Science S5:C1:PO6)
- A.
  
  Proton
- B.
  
  Positron
- C.
  
  Electron
- D.
  
  Neutron
8.

An atom of an element contains eight electrons. What is the identity of this element? You can look on a periodic table to find out. (AZ HS Science S5:C1:PO3)
- A.
  
  Flourine
- B.
  
  Carbon
- C.
  
  Oxygen
- D.
  
  Nitrogen
9.

What is the definition of chemical compound? (AZ HS Science S5:C1:PO4)
- A.
  
  A subatomic particle
- B.
  
  A combination of two protons and two electrons
- C.
  
  A combination of two or more chemical elements
- D.
  
  A mixture of two or more substances
10.

(True or False) An ionic bond forms when one or more pairs of electrons are shared between two atoms of non-metal elements. (AZ HS Science S5:C1:PO4)
- A.
  
  True
- B.
  
  False