Question

i need to practice balancing equations

Answer 1

Try balancing this equation:
\[UF_4 + Mg \rightarrow U + MgF_2\]
Then fast forward to 2:10 ~ 4:53 in the following video and watch how the instructor balances the first equation:
http://www.youtube.com/watch?v=iRh3Kpgg0Uc

Now try balancing this equation:\[K_2TaF_7 + Na \rightarrow Ta + KF + NaF\]

Answer 2

Also, try balancing the equation for the combustion of sucrose.
\[C_{12}H_{22}O_{11} + O_2 \rightarrow CO_2 + H_2O\hspace{12pt}(sucrose \space is \space C_{12}H_{22}O_{11})\]Assume that there is only one of the most complex molecules to start. In this case, sucrose. Next, balance whatever you can isolate and leave oxygen for last.

You can also try balance the equation for the combustion of fructose:\[C_{6}H_{12}O_{6} + O_2 \rightarrow CO_2 + H_2O\hspace{12pt}(fructose \space is \space C_{6}H_{12}O_{6})\]
Wikipedia links (just for fun):
http://en.wikipedia.org/wiki/Sucrose
http://en.wikipedia.org/wiki/Fructose

Answer 3

try this link tooo..........
http://www.webqc.org/balance.php

Answer 4

thanks :)

Answer 5

Very welcome.