<p>Help me! How do I balance this?</p>
<p>Cu + HNO3 ----> Cu(NO3)2 + NO + H20</p>
<p>First, look at copper. There is only one reactant with Cu and only one product with Cu. Therefore, these two molecules will have the same coefficients. The same thing can be said for hydrogen. That eliminates two coefficients for you to find (since they will be the same). Label each unknown coefficient with a variable. Set up you equations (# of an element in = # of an element out).</p>
<p>try to take care of the more complex molecules first.
it just takes a bit of practice. balancing equations is really ez</p>