Among the particles Mg2+ , S2- , NH3 , CH3F, SiF4 , CH2Br2 , how many ion-ion and ion-dipole interactions could be seen? A. 8

B. 7

C. 6

D. 5

What element is in the lathanide family?

10. translate each of the following chemical equations into a sentence. a. 2 zns(s) + 3 o2(g) -> 2 zno(s) + 2 so2(g) b. cah2(s) + 2 h2o(l) -> ca(oh)2 (aq) + 2 h2(g)

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar