Answer:
b
Explanation:
i just took the quiz on k12 and got it right
Answer:
C. CH4 + 202 – CO2 + 2H20
Explanation:
CH4+O2-CO2+H20
The above equation represents combustion of methane to produce carbon-dioxide and water.
One carbon atom is present on the reactant side as well as on the product side. Four hydrogen atoms are present on the reactant side and two hydrogen atoms on product side. In order to balance this equation, we would multiply water molecule by two. Now there are four atoms of oxygen in the product side but only two on reactant side, so we will multiply oxygen molecule by two on the reactant side. Now the equation is balanced.
The balanced chemical equation is:
CH4+202-CO2+2H2O
This equation obeys the law of conservation of mass as the mass of the reactants is same as that of the products.
The genes carried by all members of a particular population make up the populations Gene Pool.
Answer:
B
Explanation:
if the vibration has a low frequency then the sounds gonna be low as well as a high frequency having a higher sound
The answer is Mars, because Venus and Mercury have no moons. Earth has one moon.
