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Chemistry
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What factors affect the equilibrium position and in what way?

The easiest way to think about this is as the 'law of opposites' TemperatureExothermim reactions: If temp is increased then the reaction moves in the direction to reduce this rise of temp by shifti...

Answered by Nathan L. Chemistry tutor
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Describe the trend in the reactivity of group 2 elements with chlorine as you descend down the group.

As you progress down the group:- Atomic radius increases, therefore there is more electron shielding.- There is an increase in the nuclear charge, however it is outweighed by the increase in shielding.- I...

Answered by Nathan L. Chemistry tutor
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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)

Answered by Nathan L. Chemistry tutor
6984 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 droplet...

Answered by Nathan L. Chemistry tutor
18109 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-> CaO + CO2Now mix the CaO with water:CaO + H2O -> Ca(OH)2

Answered by Nathan L. Chemistry tutor
19789 Views

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