Round 65.177 to the nearest tenth

65.2. The tenths place is the first place value after the decimal. To round you have to look at the digit nearest to the right (7, in this case), if it’s above 5 and up you round up, and if it’s 4 or less you let it rest (meaning it stays the same). After you do that, everything behind it becomes zeros. So the answer is 65.2

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