Chapter 1 Test: For Period 8 Only Introduction To Chemistry
Welcome to your first chemistry test. -You can always use your periodic table and formula sheet on all tests. You can change your answers at any time before you submit your test. Once submitted you will get your grade instantly and each answer will be explained. Please review all questions, especially any that are incorrect.
- 1.Why is chemistry awesome?
- A.
Chemists get to blow stuff up
- B.
Chemistry is a gateway to great careers and fields of study
- C.
Chemistry can provide deep molecular answers to questions
- D.
All of the above
- 2.What is chemistry?
- A.
The study of chemicals
- B.
The study of matter and how it changes
- C.
The art of mixing chemicals together and the determination of the products that form
- D.
A measure of the compatibility between two people
- 3.What do chemists do? Please choose the best answer
- A.
They mix chemicals
- B.
They study matter and how it changes
- C.
They create new drugs
- D.
They analyze substances
- 4.What is a chemical?
- A.
A pure form of matter, also known as a substance.
- B.
A dangerous form of matter
- C.
A toxic form of matter
- D.
A chemical is a mixture of elements
- 5.Scientist use chemistry to provide ____________ answers to problems, which arguably provide the deepest answers to many problems.
- A.
Mathematical
- B.
Molecular
- C.
Subatomic
- D.
Long
- 6.What is a substance?
- A.
A single chemical or a mixture of chemicals
- B.
Two or more atoms bonded together
- C.
Any small sample which has been chemically investigated
- D.
A pure form of matter
- 7.The field of natural products is a branch of chemistry which focuses on those substances that are never exclusively man-made, but rather exist in the natural world.
- A.
True
- B.
False
- 8.Which fields are considered prerequisite to chemistry, meaning that they provide a foundation for , studying chemistry, also meaning that they are a more basic, less applied field of study than chemistry?
- A.
Math and physics
- B.
Biology and the social sciences
- C.
Genetics and molecular orbital theory
- D.
Math and biology
- 9.Watson and Crick determined that all living things have DNA molecules in each cell. Based on this, what types of chemists are Watson and Crick?
- A.
Analytical chemists
- B.
Medicinal chemists
- C.
Physical chemists
- D.
Biochemists
- 10.Polymer chemists investigate the extremely long repeating chains of molecules known as polymers, also commonly known as
- A.
Strands
- B.
Plastics
- C.
Links
- D.
Rubber
- 11.
![What is the relationship between the two substances shown below? - ProProfs]( "What is the relationship between the two substances shown below?")
What is the relationship between the two substances shown below?- A.
Identical substances
- B.
Isotopes
- C.
Isomers
- D.
Enantiomers
- 12.How many bonds does nitrogen typically form?
- A.
1
- B.
2
- C.
3
- D.
4
- 13.How many bonds does hydrogen typically form?
- A.
1
- B.
2
- C.
3
- D.
4
- 14.How many bonds does oxygen typically form?
- A.
1
- B.
2
- C.
3
- D.
4
- 15.How many bonds does carbon typically form?
- A.
1
- B.
2
- C.
3
- D.
4
- 16.H-O-H is an example of a ________ formula
- A.
Molecular
- B.
Structural
- 17.
![What is the relationship between the two substances shown below? - ProProfs]( "What is the relationship between the two substances shown below?")
What is the relationship between the two substances shown below?- A.
Isomers
- B.
Isotopes
- C.
Isotoners
- D.
They are identical
- 18.The study of how matter changes is the __________study of matter
- A.
Physical
- B.
Chemical
- C.
Biological
- D.
Toxicological
- 19.What is matter?
- A.
Anything that has mass
- B.
Anything that has mass and takes up space
- C.
Anything that has mass or volume
- D.
As the word implies, matter is anything that is important
- 20.Which of the folowing is not an example of matter?
- A.
A grain of sand
- B.
Air
- C.
Energy
- D.
A very small rock
- 21.Which of the following is an example of matter?
- A.
Happiness
- B.
Energy
- C.
A very small rock
- D.
Running
- 22.What do all chemists do?
- A.
They all smoke cigarettes
- B.
They study the elements of life
- C.
They mix chemicals
- D.
They study matter
- 23.A tentative explanation for a set of observations that can be tested by further experimentation is referred to as
- A.
Hypothesis
- B.
A law
- C.
A theory
- D.
None of the above
- 24.Choose the response that includes all the items listed below that are pure substances. 1. orange juice 2. butanol 3. ocean water 4. air 5. vegetable soup
- A.
1 only
- B.
2 only
- C.
1, 3, and 4
- D.
4 only
- E.
2 and 3
- 25.Which of the following is an example of a physical property?
- A.
Corrosiveness of sulfuric acid
- B.
Toxicity of cyanide
- C.
Flammability of gasoline
- D.
Neutralization of stomach acid with an antacid
- E.
Lead becomes a liquid when heated to 601 degrees Celsius
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