The carbon is considered because it is form by oxygen atoms
Answer: c. the amounts of the reactants
Explanation:
Any change in the equilibrium is studied on the basis of Le-Chatelier's principle. This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.
For the given reaction:

If the concentration of one of the products is increased, so according to the Le-Chatelier's principle, the equilibrium will shift in the direction where decrease of concentration of product takes place. Therefore, the equilibrium will shift in the left direction i.e. towards the reactants and thus more reactants will be formed.
b its plasma membrane probably
Answer:
3 molecules
Explanation: i got it right on the test, also because the 2 other ones are compounds because they have hyrdogen and oxygen attached and molecules just have particles of one element attached