Is there any way to with balancing equations? i have been doing horrible with them

Why does a red shoe appear red in daylight

In pqr m< p=60 m< q= 30 and m

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?