1️⃣Reactions

Question 1

What are the reactions of oxygen?

Answer 1

Respiration, rusting, combustion

Question 2

What are 3 uses of oxygen?

Answer 2

Breathing apparatus, welding, rocket fuel

Question 3

What is a catalyst?

Answer 3

A chemical that speeds up a chemical reaction without being used up

Question 4

What are some examples of catalyst?

Answer 4

Manganese dioxide, enzymes, iron

Question 5

What is the test for oxygen?

Answer 5

Relights a glowing splint

Question 6

How to tell if Carbon dioxide is present

Answer 6

Turns limewater cloudy

Question 7

What are some uses of carbon dioxide?

Answer 7

Fire extinguishers, fizzing drinks, dry ice

Question 8

What is the equation for carbon dioxide?

Answer 8

Acid + metal carbonate = salt + water + carbon dioxide

Question 9

What is the reaction for hydrogen?

Answer 9

Burning splint squeaky pop

Question 10

What are some of the uses of hydrogen?

Answer 10

Making margarine, rocket fuel, clean fuel

Question 11

What is the equation for hydrogen?

Answer 11

Acid + metal = salt + hydrogen

Question 12

What does exothermic mean?

Answer 12

The reaction gives out heat

Question 13

What does endothermic mean?

Answer 13

The reaction takes in heat

Question 14

What does oxidation mean?

Answer 14

Oxygen added

Question 15

What does reduction mean?

Answer 15

Oxygen removed

Question 16

What does redox reaction mean?

Answer 16

Reduction and oxidation occurring in same reaction