Which of the following elements will gain electrons to form an ion? P Fe Pb Se select all that apply

Explain which atom l or m is more stable and why

In 2002, the rare earth elements mine in mountain pass, california was closed because

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.