# Balancing equations...

Watch
Announcements
Thread starter 3 years ago
#1
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!
0
3 years ago
#2
Here's how would I do it - let's give some letters:

Spoiler:
Show

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)
0
Thread starter 3 years ago
#3
Hi,

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

Thanks!
0
3 years ago
#4
(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.
0
3 years ago
#5
(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
0
3 years ago
#6
(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.
0
X

new posts
Back
to top
Latest
My Feed

### Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

### See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

### Poll

Join the discussion

#### What support do you need with your UCAS application?

I need help researching unis (27)
13.3%
I need help researching courses (13)
6.4%
I need help with filling out the application form (9)
4.43%
I need help with my personal statement (85)
41.87%
I need help with understanding how to make my application stand out (51)
25.12%
I need help with something else (let us know in the thread!) (3)
1.48%
I'm feeling confident about my application and don't need any help at the moment (15)
7.39%