Water is an exaple of a mixture because it is made up of hydrogen and oxygen atoms bonded together
true or false

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

What three natural resources are found in the great lakes region

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.