Foliated metamorphic rock project

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

What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?