Chemistry

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  • Created by: mattyd
  • Created on: 20-10-15 02:21
What is matter made of?
Matter is composed of atoms and has mass
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What is an element?
Each of more than one hundred susbstances that form the periodic table. Pure substances are made up of only 1 type of atom
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What is a molecule?
A molecule is a group of atoms bonded together
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What is a compound?
A compound is when two or more different atoms are mixed together
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What are mixtures?
A mixture is a material system made up of two or more different substances which are mixed but are not combined chemically
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What is the law of conservation of mass?
The law of conservation of mass states that matter can neither be created nor destroyed during a chemical reaction
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What is an example of the Law of Conservation of Mass?
Through burning the wax of a candle you are able to capture the gases and soot produced as the candle burns. The remaining mass of the candle will equal the mass of the original candle.
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What is a combustion reaction?
A combustion reaction is when a substance reacts with oxygen and releases heat. Usually occurs when hydrocarbon reacts with oxygen to form carbon dioxide and water
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What is a corrosion reaction?
Corrosion is a chemical reaction that occurs between a metal and substances occurring in the air or water around it that causes the metal to be eaten way .
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What is a precipitation reaction?
Precipitation occurs when two soluble salts are mixed together to produce and insoluble salt. This insoluble salt is called the precipitate.
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What is a precipitate?
A precipitate is a solid that forms out of a solution, during a precipitation reaction.
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What is an example of a precipiation reaction?
A common example is the mixing of two clear solutions; silver nitrate and sodium chloride to form silver chloride.
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What is an aqueous solution?
An aqueos solution is a solution in which the solvent is water
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What is a soluble substance?
A soluble substance is a substance that is able to be dissolved in water
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What is an insoluble substance
An insoluble substance is a substance that is not able to dissolve in water
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What is a neutralisation reaction?
A neutralisation reaction is when two substances counteract the affects of each other. Acids and Bases are able to counteract each other.
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What is an example of a neutralisation reaction?
Antacid tablets used to relieve indigestion, the bases in antacid tablets counteract the acids within the stomach, therefore stopping indigestion.
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What is a decomposition reaction?
When one single compound breaks down into two or more singular chemicals. It is the opposite of a combination reaction
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What is a respiration reaction?
A respiration reaction is the opposite of photosynthesis. Respirations reactions involve the use of glucose and oxygen to produce water, carbon dioxide and energy.
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What is the word equation for the reaction between magnesium and oxygen?
Magnesium + Oxygen ------> Magnesium Oxide
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What is the world equation for the reaction between Magnesium and HydroChloric Acid?
Magnesium + HydroChloric Acid ----->
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Other cards in this set

Card 2

Front

What is an element?

Back

Each of more than one hundred susbstances that form the periodic table. Pure substances are made up of only 1 type of atom

Card 3

Front

What is a molecule?

Back

Preview of the front of card 3

Card 4

Front

What is a compound?

Back

Preview of the front of card 4

Card 5

Front

What are mixtures?

Back

Preview of the front of card 5
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