Chapter 2 (part A)

Question 1

Acidic Solutions

Answer 1

Have a high H+ concentration

- Release hydrogen ions (H+) when they dissociate in water

Question 2

Atomic number

Answer 2

Number of protons in the nucleus

Question 3

Horizontal rows in the Periodic Table

Answer 3

Periods

Question 4

pH Scale

Answer 4

Used to indicate the acidity or basicity of solutions.

Ranges from 0-14. 0 most acidic, 7 being neutral, and 14 most basic

Question 5

Atomic Structure

Answer 5

Made up by 3 subatomic particles: Protons, Neutrons, and Electrons

Question 6

Elements

Answer 6

All matter, living and nonliving, are composed of certain basic substances

Question 7

Use of Periodic Table

Answer 7

To group the elements w/similar characteristics

Question 8

Ionic bond

Answer 8

When a (+) charged ion forms a bond with a (-) charged ion and one atom transfers electrons to another to complete an octet

Question 9

Hydrogen bond

Answer 9

polarity within a water molecule causes the hydrogen atoms in one molecule to be attracted to the oxygen atoms in other water molecules

Question 10

Basic Solutions

Answer 10

Have a low H+ concentration

- Take up hydrogen ions (H+) or release hydroxide ions (OH-)

Question 11

Atom

Answer 11

Is the smallest part of an element that displays the properties of the element

Question 12

Covalent Bond

Answer 12

When 2 atoms share electrons.

The number of bonds that each element is able to form is equal to the number of unpaired electrons

Question 13

Properties of Water

Answer 13

High Heat Capacity
High Heat of Vaporization
Solvent
Cohesive and Adhesive
Frozen Water is less dense than Liquid Water

Question 14

Mass Number

Answer 14

Number of protons and neutrons

Question 15

Protons

Answer 15

Positively Charged

Question 16

Neutrons

Answer 16

Uncharged

Question 17

Vertical columns in the Periodic Table

Answer 17

Groups

Question 18

Electrons

Answer 18

Negatively Charged