020200
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Hi,

I'm having trouble balancing this equation! I know that there has to be a 3 in front of CuSO4 , but I am struggling on balancing the rest of the equation? Can someone help me out? Also has anyone got any tips on balancing complex equations like this?

Thanks!
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thekidwhogames
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Here's how would I do it - let's give some letters:


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3CuS (s) + a HNO3 (aq) --> b CuSO4(aq) + c NO(g) + d H2O(l)

Balancing copper:

3 = b --> b=3

Balancing hydrogen:

a = 2d ----> d = a/2

Repeat this for all and then solve for the variables


3CuS(s) + 8 HNO3 (aq) --> 3 CuSO4 (aq) + 8NO(g) + 4H2O(l)
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020200
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Hi,

I never thought about looking at it algebraically! I just tried using trial and error XD!

Thanks!
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thekidwhogames
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(Original post by 020200)
Hi,

I never thought about looking at it algebraically! I just tried using trial and error XD!

Thanks!
No problem - you don't have to!

It's only 1 mark so I would probably use trial and error too but that's another way of getting the answer 100% right.
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RickHendricks
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(Original post by thekidwhogames)
No problem - you don't have to!

It's only 1 mark so I would probably use trial and error too but that's another way of getting the answer 100% right.
u know that worked solutions are against community rules? Spoilers or not? :/

sorry
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thekidwhogames
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(Original post by RickHendricks)
u know that worked solutions are against community rules? Spoilers or not? :/

sorry
I changed it, sorry. I gave a solution to explain that method since it may be new to them.
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