Consider the substances H2O, KI, H2S, CH4. Which answer has the substances arranged in order of decreasing boiling point?

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.