Term
What are the signs of a chemical reaction? |
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Definition
Colour change
Gas created
State changed
Light created
Flame created
Smell created
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Term
How to identify common gases produced by chemical recations |
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Definition
Hydrogen-pops with lit splint
Carbon dioxide-turns lime water cloudy
Oxygen-will relight a glowing splint |
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Term
| What is the difference between reactants and products? |
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Definition
The difference is the reactants are the chemicals at the beginning of a reaction and the products are the chemicals at the end of reaction. |
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Term
How do we name salts that are created when an acid reacts with a metal?
(ACID +METAL REACTION)
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Definition
ACID + METAL= SALT + HYDROGEN
The first part of the salt is named from the metal
The second part of the salt is named from the acid
eg hydrochloric acid-chloride
sulphuric acid-sulphate
nitric acid -nitrate
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Term
Complete the following word equations
hydrochloric acid +magnesium
hydrochloric acid +calcium
sulphuric acid+aluminium
sulphuric acid+sodium |
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Definition
magnesium chloride +hydrogen
calcium chloride+hydrogen
aluminium sulphate +hydrogen
sodium sulphate+hydrogen |
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Term
How do we name a salt when an acid reacts with a metal carbonate?
(ACID+METAL CARBONATE REACTION) |
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Definition
We name the salt as before
ACID +METAL CARBONATE= SALT+WATER+CARBON DIOXIDE |
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Term
Finish the following word equations
hydrochloric acid +magnesium carbonate
hydrochloric acid +calcium carbonate
sulphuric acid+aluminium carbonate
sulphuric acid +sodium carbonate
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Definition
magnesium chloride+water+carbon dioxide
calcium chloride+water+carbon dioxide
aluminium sulphate+water+carbon dioxide
sodium sulphate +water+carbon dioxide
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Term
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Definition
the act of burning something
a process in which a substance reacts with oxygen to give heat and light |
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Term
Draw the Fire Triangle and explain it |
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Definition
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Term
Burning is a chemical reaction between what ?
Most fuels are made of what and what do they produce when they are burnt ? |
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Definition
Burning ------ fuel+oxygen + ?
Carbon and hydrogen and they produce carbon dioxide and water +HEAT
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Term
12g of Carbon react with 32g of Oxygen;
what is the product?
What is the total mass of the product? |
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Definition
Carbon Dioxide
44g [Total mass of reactants equals total mass of products; conservation of mass] |
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Term
What happens if you heat copper in air?
What is the word equation for this reaction?
What would happen to the mass of Copper as you heated it? |
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Definition
It forms copper oxide.
Copper + Oxygen= Copper Oxide
The mass increases due to the oxygen reactant forming part of the product [Copper Oxide] |
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