Top answers

Name a test for a C=C double bond

Bromine water:- Turns colourless when mixed with a double bond (unsaturated)- Remains Orange-Brown when mixed with a C-C single bond (saturated)
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Answered by Nathan L. • Chemistry tutor
8498 Views

What is an emulsion? and give some examples

Emulsions are solutions of water and oil. With small droplets of one suspended in the other. Common examples of emulsions: - Mayonnaise, Milk (oil droplets in water)- Butter, Margarine (water droplets in oil)
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Answered by Nathan L. • Chemistry tutor
20187 Views

How do you make calcium hydroxide (Ca(OH)2) from Calcium carbonate (CaCO3) and what are the equations.

Thermally decompose the calcium carbonate:CaCO 3 -> CaO + CO 2 Now mix the CaO with water:CaO + H 2 O -> Ca(OH) 2
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Answered by Nathan L. • Chemistry tutor
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Name the type of reaction that takes place when calcium carbonate is heated strongly?

This is called thermal decomposition. CaCO 3 decomposes into calcium oxide (CaO) and Carbon Dioxide (CO 2 ).
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Answered by Thomas G. • Chemistry tutor
32514 Views

What was the Rutherford gold foil experiment

The rutherford gold foil experiment was an experiment the was done to determine the structure of the atom. In it a beam of alpha particles was shot at an extremely thin piece of gold foil and a detector was ...
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Answered by Kyle C. • Physics tutor
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