Chemical Reactions

Question 1

Rule for the first 20 elements

Answer 1

2-8-8-2

Question 2

How is a Ion formed?

Answer 2

When an electron is gained or lost.

Question 3

How is a Cation formed?

Answer 3

When an atom loses an electron.

Question 4

How is an Anion formed?

Answer 4

When an atom gains an electron

Question 5

How is a Ionic Compound formed?

Answer 5

When and Anion and a Cation come together.

Question 6

Reactants

Answer 6

Substances you start with before a chemical reaction.

Question 7

Product

Answer 7

Substances formed by the reactants.

Question 8

Chemical Equations

Answer 8

Represents a chemical reaction.

Question 9

Exothermic

Answer 9

Releases energy in ways of light, heat or electricity.

Question 10

Exothermic Examples

Answer 10

Combustion and hand warmers.

Question 11

Endothermic

Answer 11

Absorbs energy in ways of light, heat or electricity.

Question 12

Endothermic Examples

Answer 12

Ice pack and photosynthesis.

Question 13

Acids

Answer 13

Releases hydrogen Ions.

Question 14

Properties of Acids

Answer 14

Sour taste and are neutralized by bases.

Question 15

Examples of Acids

Answer 15

Lemon.

Question 16

Bases

Answer 16

Releases hydroxide Ions.

Question 17

Alkali

Answer 17

Base that is dissolved in water.

Question 18

Properties of bases and alkali.

Answer 18

Slimy/soapy and can burn.

Question 19

Examples of bases and alkali.

Answer 19

Soap.

Question 20

Complete Combustion

Answer 20

Fuel reacts with oxygen to make heat quickly.

Question 21

Incomplete Combustion

Answer 21

Limited supply of oxygen.