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first substitute all the values you know into the formula (use brackets to make your work clear)

4(4) + 2(3)

we know that 2 numbers next to eachother means multiply so expan...

the forward reaction of the harbour process is exothermic, it gives out heat. so increasing temperature  will shift the equilibrium and decrease the yeild, however inc...

Empirical formula is  the simplest ratio of elements in a formula. chemists use it to make big molecules easier to work with when doing calculations.

An example of a working out an empiri...