Top answers


What factors affect the equilibrium position and in what way?

The easiest way to think about this is as the 'law of opposites' Temperature Exothermim reactions: If temp is increased then the reaction moves in the direction to reduce this rise of temp by shifting equili...
NL
Answered by Nathan L. Chemistry tutor
7148 Views

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.- It i...
NL
Answered by Nathan L. Chemistry tutor
15356 Views

A single wind turbine has a maximum power output of 2 000 000 W. The wind turbine operated continuously at maximum power for 6 hours. Calculate the energy output in kilowatt-hours of the wind turbine.

Equation: P = Wt (Power = Work[Energy] x time)1) Convert Watts to Kilowatts (W -> kW)2,000,000W -> 2,000kW [divide by 1000]2) Multiply work by time (remembering the question asks for kWh)2,000kW x 6h =...
NL
Answered by Nathan L. Physics tutor
18199 Views

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)
NL
Answered by Nathan L. Chemistry tutor
8335 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)
NL
Answered by Nathan L. Chemistry tutor
20052 Views