What is the molecular formula of sulphuric acid and ammonia compound by criss cross method

Wind is related tot he movement or warm cold air masses which kind of heat transfer does this represent

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

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