Calculate the number of oxygen atoms in a 100.0g sample of diphosphorus pentoxide P2O5 .

Main expenses you plan on making payments on a new car too. you want to spend 15% of your monthly net pay on the car payment, insurance, registration, and taxes combined. what is your monthly car allowance? $149.46 $298.91 $448.37 $597.83

Which of the following is a physical change? a.burning a piece of wood b.sawing a piece of wood in half c.rust forming on an iron fence d.a copper roof changing color from orange to green

How many atomic mass units are equal to 1.672×10−24 g of protons?