How many grams of hydrogen gas are produced if 6 moles of hydrochloric acid reacts with 2 mole of Al? 6HCl(aq) + 2Al(s) → 2AlCl3(s) + 3H2(g)
six moles of hydrochloric acid reacts with two moles of aluminum to produce 2 moles of aluminum chloride plus 3 moles of hydrogen gas.

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

Which of these is a physical property

Correct relationship between molecular formula and empirical formula