Elements and Oxides

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  • Created by: Eesha Dev
  • Created on: 25-06-15 12:58
What is produced when metals react with oxygen
Make product of metal oxide. Metal oxides have pH of 8-14 (alkali) but non-metal oxides have pH of 1-6 (acids)
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What are elements?
Substances made up of the same type of atom and cannot be broken down into anything simpler.
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What is the periodic table?
A tabular display of the chemical elements
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Name the first twenty elements
Hydrogen helium lithium berylium boron carbon nitrogen oxygen flourine neon sodium magnesium aluminium silicon phosphorus sulphur chlorine argon potassium calcium
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What are mixtures?
A substance that contains more than one type of atom but the elements are mixed together. They are physical changes and so they can be separated. The elements retain their properties.
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What are compounds?
A compound is made from different elements joined together in a chemical reaction so it cannot be separated with physical methods. Properties differ from the elements that it is made up of and you can write word equations to show them.
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What are molecules?
Two or more atoms joined together by chemical bonds. Molecules of a compound (impure) can contain different atoms joined together but molecules of an element (pure) contain the same type of atom joined together. You can represent this with formulae l
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What is produced when metal reacts with water
Make products of metal hydroxide and hydrogen gas
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What is produced when metal reacts with acid
Makes products of hydrogen and salt
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What is the word equation for rusting?
Iron+Oxygen+Water= Iron Oxide (Rust)
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What is oxidation?
A reaction with oxygen
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Give an example of slow oxidation
Rusting
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Give an example of fast oxidation
Combustion
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How can you prevent rusting?
Painting, Oiling, Galvanising...
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What is combustion?
Reaction with oxygen to release heat and light energy (burning). When something burns it reacts with oxygen to produce water and carbon dioxide. Three things are needed; fuel, oxygen, heat.
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Other cards in this set

Card 2

Front

What are elements?

Back

Substances made up of the same type of atom and cannot be broken down into anything simpler.

Card 3

Front

What is the periodic table?

Back

Preview of the front of card 3

Card 4

Front

Name the first twenty elements

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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