CHM 1020 Final Exam Review

What substance is an element?

• NO₂

• NaCl

• N₂

• CH₄

The most numerous of the element types on the periodic table are

• metals

• nonmetals

• metalloids

• noble gases

A substance that can be broken down into two or more simpler substances by chemical methods is called a(n)

• element

• mixture

• compound

• isotope

How many protons does the sodium ion, Na¹⁺, have?

• 10

• 11

• 12

• 13

Balance the following reaction: _____H₂ + _____O₂ → _____H₂O

• 1, 2, 1

• 1, 2, 1

• 1, 1, 2

• 2, 1, 2

What is the formula for aluminum oxide?

• Al₂O₃

• AlO

• Al₃O₂

• Al₂O₂

What is the primary component of an exhaled breath?

• O₂

• N₂

• CO

• H₂O

When the pH is 8.3 the H+ concentration is near _____?

• 4.01 x 10^-3

• 5.01 x 10^-5

• 6.01 x 10^-7

• 5.01 x 10^-9

Hydrogen bonding is between H on one molecule and O, F, or N on another molecule?

• True

• False

What is the formula for carbon dioxide?

• CO

• C₂O

• C₂O₂

• CO₂