Answer:
B
Explanation:
CH4 + O2 →H2O + CO2
Left side
C = 1
H = 4
O = 2
Right side
C = 1
H = 2
O = 3
So find common denominator in this case would be 6 O
CH4 + 3O2 →2H2O + CO2
Left side
C = 1
H = 4
O = 6
Right side
C = 1
H = 4
O = 6
The answer is definitely D: all of the above.
Catalyst, the temperature (think about the reaction of the dissolving sugar in the water), and the concentration of reactants (think about the nuclear reactions).
B only plants and some prokaryotes have cell walls
