Alexis B.
Quiz by , created more than 1 year ago

A quiz I designed as a part of my Honors project.

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Alexis B.
Created by Alexis B. over 9 years ago
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Honors Chemistry Quiz

Question 1 of 20

5

Which of the following is a physical property of paper?

Select one of the following:

  • It does not rust when exposed to oxygen.

  • It is flammable.

  • It can be easily ripped into smaller pieces.

Explanation

Question 2 of 20

5

Chemical properties can always be determined by simply touching or looking at a substance.

Select one of the following:

  • True
  • False

Explanation

Question 3 of 20

5

Boiling water is a chemical change.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 20

5

Drying a wet dish with a towel is a physical change.

Select one of the following:

  • True
  • False

Explanation

Question 5 of 20

5

Which of the following are examples of physical changes?

Select one or more of the following:

  • A banana is sliced and put in a fruit salad.

  • An ice cube sits in the hot sun and melts into a puddle, then evaporates.

  • A slice of bread is left in the toaster too long and burns to a crisp.

  • A milk carton is left out of the refrigerator and turns sour.

Explanation

Question 6 of 20

5

You are examining a certain substance as part of an experiment. The substance's atoms are moving randomly and rapidly, and take the shape of the container they are placed in. When you open the container, the substance diffuses quickly into the air. Given this information, you conclude that the substance is a:

Select one of the following:

  • Solid

  • Liquid

  • Gas

Explanation

Question 7 of 20

5

Which of the following are NOT properties of a solid?

Select one or more of the following:

  • Tightly packed atoms

  • Atoms diffuse quickly

  • Can be compressed

  • Definite shape and volume

Explanation

Question 8 of 20

5

Dry ice is the solid form of carbon dioxide, which lacks a liquid state. By which process is dry ice created?

Select one of the following:

  • deposition

  • freezing

  • condensation

  • sublimation

Explanation

Question 9 of 20

5

Which two changes of state result in a liquid?

Select one or more of the following:

  • Freezing

  • Sublimation

  • Melting

  • Condensation

Explanation

Question 10 of 20

5

When enough heat is added to most solids, they will either melt or sublimate.

Select one of the following:

  • True
  • False

Explanation

Question 11 of 20

5

Electrons have a positive charge.

Select one of the following:

  • True
  • False

Explanation

Question 12 of 20

5

"Average atomic mass" is the number of protons plus electrons in an atom.

Select one of the following:

  • True
  • False

Explanation

Question 13 of 20

5

Which of the following terms refers to the number of protons and neutrons in an atom's nucleus?

Select one of the following:

  • Mass number

  • Atomic number

  • Average atomic mass

  • Nuclear total

Explanation

Question 14 of 20

5

A given atom has no charge. It has an atomic number of 5. How many electrons does it have?

Select one of the following:

  • 10

  • 8

  • 5

  • 2

Explanation

Question 15 of 20

5

If an atom has an atomic mass number of 10, and you know it has 7 neutrons, the atomic number must be 3.

Select one of the following:

  • True
  • False

Explanation

Question 16 of 20

5

Which parts of an atom orbit around the nucleus?

Select one of the following:

  • Protons

  • Electrons

  • Neutrons

  • Protons and electrons

Explanation

Question 17 of 20

5

Electrons are negative, protons are positive, and neutrons have no charge.

Select one of the following:

  • True
  • False

Explanation

Question 18 of 20

5

A particular atom has two isotopes.
The mass of the first isotope, in amu, is 20.802, and its percent abundance is 42.5.
The mass of the second isotope, in amu, is 35.599, and its percentage abundance is 57.5.
What is the atom's average atomic mass?

Select one of the following:

  • 29.310 amu

  • 29 grams

  • 13.783 amu

  • 146.55 amu

Explanation

Question 19 of 20

5

Oxygen has three naturally occurring isotopes:
Mass of 15.995, natural abundance of 99.76%
Mass of 16.999, natural abundance of 0.038%
Mass of 17.999, natural abundance of 0.205%

What is the average atomic mass?

Select one of the following:

  • 16.000 amu

  • 15.9 grams

  • 33.334 amu

  • 15.8 amu

Explanation

Question 20 of 20

5

Atomic mass is measured in amu, a unit derived from the mass of carbon-12.

Select one of the following:

  • True
  • False

Explanation

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