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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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dattallmofo_ dattallmofo_
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11 years ago
I have a chemistry test thursday and I am kind of unsure how to do chemical equations and stochiometry problems . Please help.
Where do you see 4 Hydrogen on the left side ?
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#1
11 years ago
this is quite a large area to explain

balance chemical equations (number of atoms on the left needs to be equal to number of atoms on the right in the equation)

example

NaOH + H2SO4 Rightwards Arrow Na2SO4 + H2O

there is 2 Na on the right so you need to do this

2NaOH + H2SO4 Rightwards Arrow Na2SO4 + H2O

there is 4 H on the left so do this

2NaOH + H2SO4 Rightwards Arrow Na2SO4 + 2H2O

(also if you know redox reactions they help if applicable)

stoichiometry

use n=m/M=N/L=V/Vm

c=n/V

pV=nRT and so on

Wink Face

p.s. if you have a specific question feel free to ask
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