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7F Revision(Science)
7F bubbles, bang and burning chemistry science revision
| Question | Answer |
|---|---|
| Sodium+Nitrogen-> | Sodium+Nitrogen-> Sodium Nitride |
| opposite of Chemical Reaction | Physical Change |
| Calcium+Fluorine-> | Calcium+Fluorine-> Calcium Fluoride |
| Dry ice is made from=? | Solid Carbon Dioxide |
| Food changes colour when you cook them because of=? | Chemical Reaction |
| Magnesium+oxygen=reactant or product | Reactant |
| What are the 3 substances/things that fire need to burn? | Oxygen, Heat, Fuel |
| What type of extuinguisher is needed to put out electrical fires? | Carbon Dioxide |
| Why do forests have a fire break? | to stop the fire from spreading through the entire forest |
| What type of fire is Dry Powder used to put it out | Fires involving metals or electrical fires |
| Methane+Oxygen-> | Methane+Oxygen->Carbon Dioxide+Water |
| is the burning of a candle reversible or irreversible | Reversible |
| Barium Chloride+Sodium Sulfate-> | Barium Chloride+Sodium Sulfate->Barium Sulfate+Sodium Chloride |
| Iron Oxide+Aluminum-> | Iron Oxide+Aluminum->Aluminum Oxide+Iron |
| Cobalt+Chloride-> | Cobalt+Chloride-> Cobalt Chloride |
| Zinc+Nitrogen-> | Zinc+Nitrogen-> Zinc Nitride |
| Lithium+Fluorine-> | Lithium+Fluorine-> Lithium Fluoride |
| Sodium+Iodine-> | Sodium+Iodine-> Sodium Iodide |
| Calcium+Bromine-> | Calcium+Bromine-> Calcium Bromide |
| Zinc+Hydrochloric Acid-> | Zinc+Hydrochloric Acid->Zinc Chloride+Hydrogen |
| Nickel+Chlorine-> | Nickel+Chlorine-> Nickel Chloride |
| Potassium+Bromine-> | Potassium+Bromine-> Potassium Bromide |
Created by:
tnguyen17