Chemistry revision

Question 1

The non-metals are found on what side of the periodic table

Accepted Answer

The right side

Question 2

The products of comlete combustion are always

Accepted Answer

CO2 + water

Question 3

The products created when mixing and acid and base is

Accepted Answer

water + salt

Question 4

The products created during a acid carbonate reaction is

Accepted Answer

Carbon dioxide + water + salt

Question 5

What is this element : K

Accepted Answer

Sodium, Potassium

Question 6

Distilled water has a pH of 7. What colour would this go on the pH scale

Accepted Answer

Green

Question 7

Mg + HCl--> Salt + H2 gas : salt produced in this reaction would be

Accepted Answer

MgCl

Question 8

A base is a substance that releases

Accepted Answer

Hydroxide ions (OH-)

Question 9

What test can be performed to see if the gas produced is Hydrogen gas

Accepted Answer

Pop test

Question 10

What is this element : Cl

Accepted Answer

Chlorine

Question 11

The periodic table is made up of all the ______ found on earth

Accepted Answer

elements

Question 12

an acid is a substance that releases

Accepted Answer

Hydrogen ions (H+)

Question 13

What is this element : Na

Accepted Answer

Sodium

Question 14

In an exothermic reaction energy is

Accepted Answer

Released during the reaction

Question 15

How many atoms in the following: 2NaOH

Accepted Answer

6

Question 16

an example of an endothermic reaction is

Accepted Answer

Sherbet, Photosynthesis

Question 17

Combustion needs fuel, heat and what gas to work?

Accepted Answer

Oxygen

Question 18

An acid has a pH of

Accepted Answer

0-7

Question 19

The gas formed during an acid base reaction is

Accepted Answer

Hydrogen

Question 20

Which is the correct formula for photosynthesis

Accepted Answer

Carbon dioxide + water + energy --> Sugar + Oxygen

Question 21

What is this element : Fe

Accepted Answer

Iron

Question 22

A base has a pH of

Accepted Answer

7-14

Question 23

What is this element : Cu

Accepted Answer

Copper

Question 24

What is this element : Au

Accepted Answer

Gold

Question 25

An element is

Accepted Answer

A substance made up of only 1 type of atom

Question 26

How many atoms is in this compound: 3H20

Accepted Answer

9

Question 27

an example of an exothermic reaction is

Accepted Answer

Respiration, Combustion

Question 28

In an endothermic reaction energy is

Accepted Answer

Absorbed during the reaction

Question 29

The metals can be found on which side of the periodic table

Accepted Answer

The left side

Question 30

A compound is

Accepted Answer

2 or more elements bonded togther

Chemistry revision

Questions 30

Chemistry revision

Questions 30