Module 4 Test

Question 1

a chemical bond formed between oppositely charged ions

Answer 1

ionic bond

Question 2

the force of attraction between molecules of different substances so that they tend to stick together

Answer 2

adhesion

Question 3

What is the chemical formula for water?

Answer 3

H20

Question 4

Chlorine is a Group 7A element What is the charge on a chloride ion?

Answer 4

1-

Question 5

What does each dot in an electron dot diagram represent?

Answer 5

valance electron

Question 6

the force of attraction between molecules of the same substance so that they tend to stay together

Answer 6

cohesion

Question 7

What are coefficients used for in chemical equations?

Answer 7

to tell how many moelecules of each atom or compound is needed to balance a chemical equation

Question 8

What are subscripts used for in chemical formulas?

Answer 8

to show the number of atoms of an element in a molecule or compound

Question 9

When an atom loses an electron it forms a(n)

Answer 9

cation

Question 10

a molecule that has slight positive and negative charges due to an imbalance in the way electrons are shared

Answer 10

polar molecule

Question 11

Why are water molecules polar?

Answer 11

the oxygen atom has a greater attraction for electrons than the hydrogen atom does

Question 12

A chemical bond in which two atoms share one or more pairs of valence electrons

Answer 12

covalent bond

Question 13

A chemical bond that forms when atoms share electrons is always a(n)

Answer 13

covalent bond

Question 14

What is a stable electron configuration?

Answer 14

one in which the highest occupied energy level is filled with electrons