Approximately how many atoms make up 2.3 moles of gallium? a.1.6 × 1021 atoms b.3.8 × 1022 atoms c.2.3 × 1023 atoms d.1.4 × 1024 atoms

The volume of helium in a blimp is 6.28 x 10^9 millimeters. the density of helium in the blimp is .1786 kilogram/meter^3. find the mass of the helium in the blimp.

What is the percent by mass of oxygen in fe2o3

Which three statements represent the benefits of performing experiments using computer simulations?