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How do covalent bonds work?

Firstly, let's define a covalent bond as being a shared pair of electrons, between two positively charged nuclei, with one being donated from each ion/atom. Let's note that an electron has a negative charge,...
JW
Answered by Jack W. • Chemistry tutor
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Ammonia is made from nitrogen and hydrogen in a reversible reaction. Write a balanced symbol equation for this reaction, name the reaction and give one use for ammonia.

N 2 + 3H 2 ⇌ 2NH 3 The Haber process, and ammonia is used in the production of many synthetic fertilizers.
HH
Answered by Henry H. • Chemistry tutor
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Explain how a catalyst works to increase the rate of reaction

A catalyst will provide an alternative route for the reaction with a lower activation energy by allowing reacting molecules to bind to their active sites. In addition, a catalyst will not be used up in the r...
AB
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What is the difference between empirical and molecular formula?

The molecular formula of an atom shows you the actual number of atoms of the elements in a compound. For example ethane has molecular formula C2H6 meaning there are 2 carbon atoms and 6 hydrogen atoms in one...
BJ
Answered by Becky J. • Chemistry tutor
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Why does Sodium Bromide have a melting point that is higher than that of Sodium ?

The melting point of the above elements/compounds is based on their bonding. Sodium Bromide has ionic bonding (a very strong type of bonding), which involves an electrostatic force of attraction between posi...
DT
Answered by Devansh T. • Chemistry tutor
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