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Help me balance equations

#6
username n/a said:
S + HNO^3 = H^2SO^4 + NO^2 + H^2O

Be^2C + H^2O = Be(OH)2 + CH^4

Cu + HNO^3 = Cu(NO^3)2 + NO + H^2O


Balance these please.

:help:

EDIT:none of the exponets(SP) are 20 the Os after the 2s are oxygen
Click to expand...

I'll give you a hint:

In the first one, Sulfur goes from Ground State to +6, and Nitrogen goes from +5 to +4. Based on that info you should be able to balance the first equation. You should be able to figure out how to proceed with the others from that point on.
 
#7
It's just algebra. Make sure you have the same number of atoms on both sides. I usually start with oxygen or hydrogen and find a way to balance one and then adjust as necessary to balance the rest.

S + 6(HNO3) = H2SO4 + 6NO2 +2H2O

1 sulfur atom, 6 hydrogen atoms, 6 nitrogen atoms, 18 oxygen atoms

Note: those should be subscripts, not exponents -- the two have very different meanings
 
#8
PSPookie said:
It's just algebra. Make sure you have the same number of atoms on both sides. I usually start with oxygen or hydrogen and find a way to balance one and then adjust as necessary to balance the rest.

S + 6(HNO3) = H2SO4 + 6NO2 +2H2O

1 sulfur atom, 6 hydrogen atoms, 6 nitrogen atoms, 18 oxygen atoms

Note: those should be subscripts, not exponents -- the two have very different meanings
Click to expand...

Thank you

P.S. How do I show subscripts on a computer?
 
#9
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#11
Ericman197 said:
Be2​C + 4H2​O = 2Be(OH)2​ + CH4​

3Cu + 8HNO3​ = 3Cu(NO3​)2​ + 2NO + 4H2​O
Click to expand...

S + 6HNO3​ = H2​SO4​ + 6NO2​ + 2H2​O

I did all 3, and got the same last 2 as Ericman. All 3 took a total of about 5 minutes, and I hate chemistry. Makis right, you need to do your own work, this is some basic stuff, if you can't get these, skipping work certainly isn't gonna make it any easier.

Edit: I just saw that PSPookie did the first one, but hey, we got the same answer
 
#15
TrooperFarva said:
S + 6HNO3​ = H2​SO4​ + 6NO2​ + 2H2​O

I did all 3, and got the same last 2 as Ericman. All 3 took a total of about 5 minutes, and I hate chemistry. Makis right, you need to do your own work, this is some basic stuff, if you can't get these, skipping work certainly isn't gonna make it any easier.

Edit: I just saw that PSPookie did the first one, but hey, we got the same answer
Click to expand...

Actually I thought those were pretty hard to balance. Not rocket science, but it took a while. The exponents didn't help much either.
 
#19
S+HNO^3=H^2SO^4+NO^2+H^2O = 25 Characters

Be^2C+H^2O=Be(OH)2+CH^4 = 24 Characters

Cu+HNO^3=Cu(NO^3)2+NO+H^2O = 26 Characters

25 + 24 + 26 = 75.

So, if you balance it, with half on each side of the board, it'd be like...


balance.jpg



That should balance.
 

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