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Description
Flashcards by laurenfaye, updated more than 1 year ago
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Created by laurenfaye
almost 9 years ago
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| Question | Answer |
| Chemistry: What is oxidisation? | The gaining of oxygen |
| Chemistry: What is reduction? | The loss of oxygen |
| Chemistry: Why are alloys stronger than pure metals? | They have different sized atoms which makes it harder for the atoms to move over each other, so the alloys are harder |
| Chemistry: Why is it important to recycle metals? | Uses less resources Uses less energy Uses less money Makes less rubbish |
| Chemistry: What is the test for an alkene? | Bromine water + alkene=decolourised |
| Chemistry: What is the test for an alkane? | Bromine water + alkane=still brown. |
| Chemistry: When calcium oxide reacts with water, what does it produce? | Calcium hydroxide |
| Chemistry: What is the test for... Hydrogen Oxygen Chlorine | Hydrogen makes a squeaky pop with a lighted splint Oxygen will relight a glowing splint if the gas is present Chlorine will bleach damp blue litmus paper, turning it white |
| Chemistry: What does electrolysis mean? | Splitting up with electricity |
| Chemistry: When does complete combustion happen? | When there's plenty oxygen |
| Chemistry: When does incomplete combustion happen? | When there's not enough oxygen |
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