Science Chemistry

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What is matter composed of?
All matter is composed of matter and has mass
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What is an Element?
Substance made up of only 1 type of atom
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What is a Compound
A compound is a molecule made of atoms from different elements
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What is a molecule?
A group of atoms bonded together
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What is a mixture?
o made up of two or more different substances which are mixed but are not combined chemically. 
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What happens in a chemical reaction
In a chemical reaction a new substance is formed. However mass is not created or destroyed
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What is a Combustion reaction?
o a chemical reaction that involves the rapid combination of a fuel with oxygen
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What is a Corrosion reaction?
A process in which a solid, for example metal, is eaten away and changed by a chemical action. (rust)
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What is a precipitation reaction?
Occurs when two soluble compounds react to form an insoluble compound suspended in a liquid.
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What is a Neutralisation reaction?
Is a chemical reaction in which an acid and base react quantitatively with each other.
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What is a decomposition reaction?
A complex molecule breaks down to make simpler ones
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What is the word equation for a chemical reaction between Magnesium and Oxygen producing magnesium oxide
Magnesium + Oxygen = Magnesium Oxide
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What is an exothermic reaction?
when energy is released in the form of heat
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What is an Endothermic reaction
when heat is absorbed.
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What is respiration?
is where our bodies use glucose reacted with oxygen which gives us carbon dioxide + water. It occurs slowly. Respiration also creates an oxide
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What is the impact of a Catalyst
Speeds up the reaction
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What are considerations when scientific research is conducted?
Social, Ethical, Environmental
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Other cards in this set

Card 2

Front

What is an Element?

Back

Substance made up of only 1 type of atom

Card 3

Front

What is a Compound

Back

Preview of the front of card 3

Card 4

Front

What is a molecule?

Back

Preview of the front of card 4

Card 5

Front

What is a mixture?

Back

Preview of the front of card 5
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