Air And Oxygen

Question 0

What gases are in the air?

Answer 0

Oxygen 
Molecule gas
Nitrogen 
Carbon dioxide 
Helium
Krypton
Neon
Hydrogen

Question 1

What percentage of oxygen is in the air?

Answer 1

21%

Question 2

What are the uses for oxygen in the air

Answer 2

The gas we breath. Without, we will die. Have to have it to survive.

Question 3

What are the uses for nitrogen in the air

Answer 3

4/5 of air we breath. I reactive. Breath in and out and no change.

Question 4

What are the uses for carbon dioxide in the air

Answer 4

Created a protective atmosphere. Enables microorganisms to stay away from our food for a little longer.

Question 5

What percentage of nitrogen is in the air

Answer 5

78%

Question 6

What percentage of carbon dioxide is in the air?

Answer 6

21%

Question 7

Fire triangle at are the 3 sides?

Answer 7

Oxygen, heat and fuel

Question 8

What would happen if one of the 3 sides of the fire triangle wasn’t in the system and why

Answer 8

The fire will go out! It cannot continue without 1 of the sides.

Question 9

What do the firefighters use to put out 1 of the sides of the triangle

Answer 9

Fire extinguishers, blankets and fire buckets help to put one of the sides out.

Question 10

What are the different types of oxides?

Answer 10

Acidic, basic, neutral, amphoteric

Question 11

What are acidic

Answer 11

These are usually oxides of non metals.

E.g, carbon dioxide, nitrogen dioxide, etc.

Question 12

What are basics

Answer 12

These are usually oxides of metals.

E.g, calcium oxide, magnesium oxide, etc.

Question 13

What are neutrals?

Answer 13

A few oxides are neither acidic nor basic. E.g, water.

Question 14

What are amphoterics?

Answer 14

The oxides of a few metals can behave both as acids and bases.
E.g, zinc oxides aluminium oxide, etc.