Calculate the mass, Volume and number of molecules in 2.5 mol of ammonia NH3

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

Which statement best explains the relationship between an area is geography and the temperature of its surface water

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?