Select the correct statement regarding the following balanced equation

2mg + o2 > 2mgo

1)3 moles of mg will produce 6moles of mgo

2)when 100 grams of mg reacts with excess o2, 100 grams of mgo forms

3)for every mole of mgo produced, half the number of moles of o2 is consumed

4) 8 moles of o2 requires 4 moles of mg in order to react completely

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.