What is the volume, in liters, of 12.0 kg of H2 at STP? Please help I would really appreciate it. :)

The number at the end of an isotope’s name is the number.

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space