Chemical Reactions

Question 1

What is an Acid

Answer 1

a compound that dissolves in water to form a solution with a pH lower than 7

Question 2

what is a Base?

Answer 2

a compound that dissolves in water to form a solution with a pH greater than 7

Question 3

What is an indicator

Answer 3

chemicals used to determine if a solution is an acid or a base

Question 4

Litmus paper is what?

Answer 4

an acid/base indicator that turns red in acid and blue in a base

Question 5

A mixture of several indicators that change color as the acidity changes?

Answer 5

Universal Indicator

Question 6

acids and bases reacting (losing their properties) to produce water and a salt

Answer 6

Neutralization

Question 7

Represents how acidic or basic a solution is

Answer 7

pH Scale

Question 8

anything that has mass and takes up space

Answer 8

Matter

Question 9

Atoms are not created or destroyed in a chemical reaction, this is called what?

Answer 9

Law of Conservation of Matter

Question 10

combinations of pure substances

Answer 10

Mixtures

Question 11

All components of the mixture look the same

Answer 11

Homogenous Mixtures

Question 12

All components of the mixture look different

Answer 12

Heterogenous Mixture

Question 13

What are the three main categories of the periodic table

Answer 13

Metals, Non-metals, metalloids

Question 14

Elements that don’t usually form bonds with other elements

Answer 14

Noble Gases

Question 15

React violently with water

Answer 15

Alkali metals

Question 16

form poisonous gases and travel in pairs

Answer 16

Halogens

Question 17

number of protons and electrons located on the element symbol

Answer 17

atomic number

Question 18

The number under the element name

Answer 18

molar mass

Question 19

Atoms that have a different number of neutrons than protons are called

Answer 19

isotopes

Question 20

The outer orbital is an atom is called the

Answer 20

valence shell

Question 21

Always contains a non-metal and metal

Answer 21

ionic compounds

Question 22

Contains a non-metal and a non-metal

Answer 22

molecular/Covalent compound

Question 23

Contains 2 identical atoms

Answer 23

diatomic (also known as the silly sever, hydrogen, nitrogen, fluorine, Oxygen, iodine, chlorine, bromine)

Question 24

Containing two parts

Answer 24

Binary

Question 25

When an atom loses or gains electrons it forms a....

Answer 25

ion

Question 26

positively charged

Answer 26

cation

Question 27

negatively charged

Answer 27

anion

Question 28

When one atom loses an electron and another atom gains that electron, the process is called...

Answer 28

electron transfer

Question 29

amu

Answer 29

atomic mass unit