Top answers

Chemistry
GCSE

How can you increase the yield of product from a reaction?

  1. Increase the temperature
    2) Increase the concentration of reactants
    3) Increase the surface area of the reactants
    4) Use a catalyst
    5) Remove the product as it's formed
AW
Answered by Azelie W. Chemistry tutor
29006 Views

When chlorine is bubbled through potassium bromide solution, the solution turns orange. Explain this.

This is because the reaction taking place is a displacement reaction, meaning that one element is being displaced by another. 

So what is being displaced?:

If you look...

LB
Answered by Leah B. Chemistry tutor
78056 Views

What is a catalyst?

A catalyst lowers the activation energy of a reaction and therefore increases the rate of reaction. The catalysts reacts with the reactants but is regenerated again i...

HG
Answered by Hannah G. Chemistry tutor
4269 Views

What do you get when you add an acid to a metal hydroxide?

If you add an acid to a metal oxide you get a salt and water.

For example: 

HCl + NaOH ---> NaCl + H2O

JM
Answered by Jenny M. Chemistry tutor
4313 Views

How do enzymes affect the rate of reaction?

Enzymes are known as biological catalyst and work by lowering the activation energy of a reaction. They do this by providing an alternative pathway whi...

BO
Answered by Bukky O. Chemistry tutor
18509 Views

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