Which of the following is a combustion reaction? a а
Fe (s) + S (s) --→ FeS
b
ZnS + O2 → Zn2O + SO2
c с
Ca + 2H20 + Ca(OH)2 + H2
d
C₂H4 + O2 CO2 + H₂O

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

A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159

If you burn 46.6 g of hydrogen and produce 416 g of water, how much oxygen reacted