2, start superscript, start text, n, d, end text, end superscript degree with a leading coefficient of 333

Where is ur question

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.

Aand b are correctly balanced reactions. they have the same number of atoms in both sides of the reaction