A gas ja that has a 3.0 x 1023 molecules of Hydrogen gas, H2 at rtp. What mass of hydrogen does it contain?​

Place the elements below in order of decreasing ionization energy. aluminum(al) chlorine(cl) magnesium (mg) sulfur(s)

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.