Mark the following statements as true or false. If a statement is false, correct it to make a true statement.


c. Valence electrons are the electrons in the outermost shell of an atom.

Which of the following statements correctly describes a solution?

a. In a solution the solute is chemically dissolved by the solvent.

b. Solutions involve large particles suspended in another component.

c. The particles in a solution will settle out if left to sit.

d. The amount of solute in a solution is expressed as the solution's concentration.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

a. The mass number of an atom is the sum of its neutrons and protons.

Match the following terms with the correct definition:

_____Endergonic reaction a. Energy in motion

_____Potential energy b. Energy stored in chemical bonds

_____Electrical energy c. Reaction that consumes energy

_____Anabolic reaction d. A decomposition reaction

_____Oxidation-reduction reaction e. The energy of moving charged particles

_____Chemical energy f. Stored energy     

_____Catabolic reaction g. Synthesis reaction     

_____Kinetic energy h. Reaction where electrons are transferred between reactants

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

b. Protons and neutrons have a positive charge and electrons have a negative charge.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

d. Every element has a characteristic number of protons, which is called the element's mass number.

A proton ___________:

a) Has one positive charge.

b) Has one AMU.

c) Is found in the nucleus of the atom.

d) Only a and b are true.

e) a, b, and c are true.

The average oxygen atom has a mass number of 16 and an atomic number of 8. This means that the number of neutrons in this oxygen atom is:

a) 24.

b) 8.

c) 16.

d) 4.

e) 2.

How many valence electrons does an atom with five total electrons have?

a) 5.

b) 7.

c) 3.

d) 2.

e) 1.