Gas giant or ice giant which two statements are true on how Layla’s planet was formed

As you move from right to left on the periodic table the atomic radius fill in the blank

Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.

Ill give u brainliest pls how is mass of carbon conserved during cellular respiration