Read the chemical equation. Mg + HCl → MgCl2 + H2 How many liters of hydrogen gas is produced at 298 K and 0.960 atm if 3.00 moles of hydrochloric acid react with an excess of magnesium metal? (1 point) a 38.2 liters b 42.6 liters c 66.7 liters d 76.4 liters HELP ASAP

Select the correct answer. which phrase correctly describes temperature? o a. average rotational kinetic energy of the particles in an object o b. average energy of the particles in an object c. average translational kinetic energy of the particles in an object od. all energy possessed by the particles in an object

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

Akno3 solution containing 51 g of kno3 per 100.0 g of water is cooled from 40 ∘c to 0 ∘c. what will happen during cooling?