Sulfur dioxide reacts with oxygen gas to form sulfur trioxide. What mass of sulfur dioxide was used up in the reaction with an excess of oxygen gas if 12.4 g of sulfur trioxide is formed?

Which characteristics can be used to differentiate star systems? check all that apply.

How many liters of ethylene glycol antifreeze (c2h6o2), with a density of 1.100 g/l, would you add to your car radiator containing 15.0 kg of water if you needed to protect your engine to - 21.5°c? for water, kf = 1.86°c m -1.

What powdery mineral is a health hazard when airborne?