The cn– ion is widely used in the synthesis of organic compounds. what is the pattern of electron pairs in this ion? how many bonding pair(s) of electrons? how many lone pair(s) on the carbon atom? how many lone pair(s) on the nitrogen atom?

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?

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.

Match the formula for the following compound:   magnesium sulfate heptahydratemgs·7h2omg2so4·7h2omg(so4)2·7h2omgso4·7h2o