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Chemistry

GCSE

Calculate the amount of moles in 36 grams of carbon

We need to use the equation : Moles=Mass/MrSubstitute in value : moles= 36/12Therefore number of moles in 36 grams of carbon is 3.

Answered by Ramisha K. • Chemistry tutor

14525 Views

Describe dynamic equilibrium with reference to a process you have been learning in class.

Dynamic equilibrium is when the forward and reverse reactions happen at the same time and rate so there is no overall net change. A reaction that can be used as an example is the Haber Process:

Answered by Hasham S. • Chemistry tutor

1889 Views

Methane is a Hydrocarbon. Show the structural formula for Methane and Explain why it is a hydrocarbon?

show CH₄with C in the centre and 4 H atoms with bonds to it at 90^oto each other.
A hydrocarbon is a molecule that contains only hydrogen and carbon atoms.

Answered by Stephen R. • Chemistry tutor

3142 Views

What are Isotopes?

Atoms and elements are made of protons, neutrons and electrons. The nucleus is made of protons and neutrons, and the electrons surround the nucleus, as shown in the illustration below. The sum of the numb...

Answered by Jonathan P. • Chemistry tutor

2762 Views

What is the difference between compounds elements and atoms etc..?

This can be such a confusing topic and something that I struggled with but once you get it, it makes so much sense. The best way for me to learn these was using flashcards so if that's something you want ...

Answered by Rebeka B. • Chemistry tutor

2749 Views