I cant explain this really

Asyringe contains 56.05 ml of gas at 315.1 k. what volume will that gas occupy if the temperature is increased to 380.5 k? a) 12.41 b) 46.42 c) 67.68 d) 81.74

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

Identify the electromagnets with poles that are reversed from the electromagnet shown above