If the same atoms appear on both sides, then it's balanced.
In this reaction, there are 4 Oxygens, 2 Carbons, and 2 Nitrogens on each side. So numerically, <em>it's balanced</em>. But I don't know enough chemistry to say whether the reaction is possible.
A bridge supported by vertical cables which then leads to more support from larger cables.
Phonograph. Hope that helps
Answer:
a. 250kg I think it's the right answer. hope it helps:)