Top answers

Chemistry
GCSE

In the Haber process, the best yield of ammonia is produced at a low temperature. Explain why

The forward reaction, N2 (g)+ 3H2(g) --->  2NH3(g) is an exothermic reaction. This means that energy is released to the surroundings during the reaction and ...

MP
Answered by Monique P. Chemistry tutor
20397 Views

How would increasing the pressure of a system will have what effect on the equilibrium of this reversible reaction 3H2 + N2 <---> 2NH3?

Firstly, I would ask the student what they understand about Le Chateliers Principle. "If a system is at equilibrium and a change is made to the conditions, then the system responds to counteract the ...

FD
Answered by Fatema D. Chemistry tutor
9949 Views

How can I test to see if a sample a metal contains potassium?

The metals of group 1 (like potassium) can be identified by a flame test: A sample of the metal is placed in a bunsen flame, and the colour of the flame tells the metal. 

Potassium placed in the fl...

LD
Answered by Louis D. Chemistry tutor
2909 Views

Why is water less dense in its solid state?

This is because in liquid state water molecules are close to each other, but in an disorganised manner. Each water molecule forms around 3.4 hydrogen bonds with other water molecules. 

However, in ...

CB
Answered by Cezar B. Chemistry tutor
8435 Views

Describe the structure and bonding in diamond.

Answer: Diamond is organised in a giant lattice structure with strong covalent bonds between carbon atoms. Each carbon atom forms 4 bonds. Explanation: Each carbon atom has four electrons in its outer she...

AR
Answered by Anuska R. Chemistry tutor
57917 Views

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