Chemistry Unit 1 Practice Test Questions And Answers

42 Questions | By Ddo364 | Last updated: Jun 26, 2022 | Total Attempts: 3606

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Love chemistry? Then we have a perfect quiz designed especially for you. Try this awesome " Chemistry Unit 1 Practice Test Questions And Answers " and let's see how well versed you are in chemistry. The quiz is made to test your understanding of the fundamental concepts of chemistry. If you have a serious chemistry exam then test your knowledge and prepare well with this quiz! We sincerely hope that this quiz helps you prepare well. Enjoy and good luck!

Questions and Answers

1.

What is chemistry?
- A.
  
  The branch of science concerned with the nature and properties of matter and energy
- B.
  
  The study of living organisms, divided into many specialized fields.
- C.
  
  The science that deals with materials of the universe and the changes that these materials undergo
- D.
  
  The intellectual and practical activity encompassing the systematic study of the structure and behavior of the physical and natural phenomenons.
2.

Wood burning in air, forming water, carbon dioxide, and other substances is a form of chemistry.
- A.
  
  True
- B.
  
  False
3.

What are the steps to the scientific method?
4.

What is a theory?
- A.
  
  Something that is witnessed and can be recorded.
- B.
  
  An interpretation, or a possible explanation of why nature behaves in a particular way.
- C.
  
  A statement that summarizes generally observed behavior.
- D.
  
  A possible explanation for an observation.
5.

What is matter?
- A.
  
  Something that has mass and occupies space.
- B.
  
  Fundamental unit of which elements are made.
- C.
  
  Substances that contain only one type of atom.
- D.
  
  Substances that are made by bonding atoms together in a specific way.
6.

What are compounds? What are elements?
7.

Check the 3 different types of states of matter.
- A.
  
  Solid
- B.
  
  Water
- C.
  
  Liquid
- D.
  
  Blood
- E.
  
  Gas
8.

A chemical property is a characteristic that describes the ability of a subtsance to change to a different substance.
- A.
  
  True
- B.
  
  False
9.

Describe some different physical and chemical properties.
10.

What is a mixture?
- A.
  
  A substance without variable composition
- B.
  
  A substance with variable composition
11.

An alloy is a mixture of elements that have a metallic property.
- A.
  
  True
- B.
  
  False
12.

A pure substance is a...
- A.
  
  Pure element or pure compound
- B.
  
  A mixture of elements
- C.
  
  A mixture of atoms
- D.
  
  Nitrogen.
13.

What is the difference between a homogeneous and a heterogeneous mixture?
14.

What is filtration?
- A.
  
  A separation process that depends on the boiling points of the substances
- B.
  
  An agent that is used to distillate water
- C.
  
  Separation of a solid from a liquid by using filter paper
- D.
  
  Desalination
15.

What is the element symbol for fluorine?
- A.
  
  Fl
- B.
  
  Fo
- C.
  
  Fe
- D.
  
  F
16.

What is the law of constant composition?
- A.
  
  A given compound always contains elements in exactly the same proportion by mass
- B.
  
  The fact that a substance made of two or more different elements joined together in a specific way is called a compound
- C.
  
  Elements are made up of tiny particles called atoms
17.

J.J Thompson found what neutrons were.
- A.
  
  True
- B.
  
  False
18.

Isotopes are...
- A.
  
  The number of protons in the nucleus of a given atom
- B.
  
  The total number of protons and neutrons in the nucleus of a given atom
- C.
  
  Atoms with the same number of protons but different number of neutrons
- D.
  
  The number of electrons in the nucleus of a given atom
19.

In the periodic table, the following groups exist
- A.
  
  Alkaline
- B.
  
  Alkali
- C.
  
  Helenogens
- D.
  
  Halogens
- E.
  
  Ignoble Gases
- F.
  
  Noble Gases
20.

What properties of elements are considered when arranging elements in the periodic table?
21.

The four physical properties of the metals include...
- A.
  
  Efficient conduction of heat and electricity
- B.
  
  Ability to be eaten (edible)
- C.
  
  Malleability (can be hammered into thin sheets)
- D.
  
  Ability to change in state of matter
- E.
  
  Lacking shininess (luster)
- F.
  
  A lustrous appearance
- G.
  
  Ductility (can be pulled into thin wires)
22.

A diatomic molecule a molecule that consists of three atoms.
- A.
  
  True
- B.
  
  False
23.

Describe what cations, anions, and ions are in general.
24.

Chemical compounds must have a ______ charge
- A.
  
  Positive
- B.
  
  Negative
- C.
  
  Neutral
25.

A binary ionic compound is a two element compound consisting of an anion and a cation.
- A.
  
  True
- B.
  
  False