Quiz 1b (09.18.2020)

Question 1

A mol is the measure of the material containing _____ particles.

Answer 1

6.022 x 10^23

Question 2

The mass of 1 mol of atoms of an element is the _______.

Answer 2

molar mass

Question 3

Elements combine with each other to form_____.

Answer 3

compounds

Question 4

When two or more elements combine to form a compound, an _______.

Answer 4

entirely new substance results

Question 5

Compounds are composed of atoms held together by ______.

Answer 5

chemical bonds

Question 6

Chemical bonds are classified into two types, what are they?

Answer 6

ionic and covalent

Question 7

Ionic bonds occur between ____.

Answer 7

metals and nonmetals (transfer of electrons from one atom to another)

Question 8

What is a lattice?

Answer 8

a rectangular three-dimensional array of alternating cations and anions.

Question 9

In an ionic bond, the metal atom becomes a ___.

Answer 9

cation

Question 10

In an ionic bond, the nonmetal atom becomes an _____.

Answer 10

anion

Question 11

Covalent bonds occur between _______.

Answer 11

two or more nonmetals (involve the sharing of electrons between two atoms)

Question 12

When a nonmetal bonds with another nonmetal______.

Answer 12

neither atom transfers its electron to the other (instead the bonding atoms share some of their electrons)

Question 13

The covalently bound atoms compose a molecule - hence, we call covalently bonded compounds _______.

Answer 13

molecular compounds (covalent compounds and molecular compounds are the same thing)

Question 14

What are the three different types of chemical formulas?

Answer 14

empirical, molecular, structural

Question 15

An ______ gives the relative number of atoms of each element in a compound.

Answer 15

empirical formula

Question 16

A ______ gives the actual number of atoms of each element in a molecule of a compound.

Answer 16

molecular formula