Can anyone help me with these. I don't get it.:confused:

Aluminum bromide + chlorine yield aluminum chloride +bromine


Potassium chlorate when heated yields potassium chloride + oxygen gas


Hydrogen +nitrogen monoxide yield water + nitrogen

The first one is single replacement reaction
2(Al)2Br3 + 3Cl2 (arrow pointing right) 2Al(Cl)3 + 3Br2

The first one is single replacement reaction
2(Al)2Br3 + 3Cl2 (arrow pointing right) 2Al(Cl)3 + 3Br2
The numbers after (to the right of) the symbols are subscripts: they should be written below the line and smaller than the coeficients which are the numbers used to balance the equation and printed to the left of the symbols.

The next equation is a decomposition reaction.

2KClO3 (arrow pointing to the right with a triangle above it) 2KCl + 3O2


The third is also a single replacement reaction:
H2 + 2NO (arrow pointing to the right) H2O + N2

I am a retired biology/chemistry teacher and glad to help. I do know that those are the correct balanced equations. In order to write and balance equations, you must have a working knowledge of element symbols and oxidation numbers. If you have a table of common oxidation numbers to use while you work out the equations that should be helpful. I just registered for this site today so I did not see your post right away. I hope this helps.