Reaction Flashcards
What gases make up the air
Nitrogen
Oxygen
Carbon Dioxide
Water Vapor
Noble gasses
What percent of the air is oxygen
21
What percent of the air is nitrogen
78
What percent of the air is Aragon
0.9
What percent of the air is carbon dioxide
0.037
What are some reactions of oxygen
Respiration
Rusting
Combustion
What are some uses of oxygen
Breathing apparatus
Welding
Rocket fuel
What are some physical features of oxygen
Colourless
Odourless
Same density as air
What chemicals are required for oxygen
Hydrogen peroxide
Manganese dioxide
What’s the equation for oxygen
Manganese dioxide + hydrogen peroxide-> water + oxygen
What as catalyst
Speeds up chemical reactions
What are some examples of catalyst
Manganese dioxide
Enzymes
Iron
What is the equation for respiration
Sugar+oxygen -> carbon dioxide +water (+ energy)
What is the test for carbon dioxide
Turns limewater cloudy
What are some uses of carbon dioxide
Fire extinguisher
Fizzy drinks
Dry ice
What chemicals are required for carbon dioxide
Hydraulic acid
Calcium carbonate
What is the equation for carbon dioxide
Calcium carbonate + hydraulic acid -> calcium chloride + water + carbon dioxide
What is the test for hydrogen
Burning splint , squeaky pop
What are some uses of hydrogen
Making margarine
Rocket fuel
Clean fuel
What chemicals are required for hydrogen
Magnesium
Hydraulic acid
What’s the equation for hydrogen
Magnesium + hydraulic acid -> magnesium chloride + hydrogen
Exothermic
Temperature rises
Gives out heat
E.G.
burning a fuel
Endothermic
Temperature falls
Takes in heat
E.G.
Sherbet on tong
What’s oxidation
Oxygen added
