Can NiF2 react with K to produce KF and Ni? why or why not. A. Yes, beacause K has higher activty than Ni.
B. Yes, because K has lower activity than Ni.
C. No, because Ni and K have lower activity then F.
D. No, because F and Ni have the same activity.

Water is initially present in a state where its molecules are far apart. during a change of state, its molecules slow down. which change of state has most likely taken place? from a gas to a liquid from a liquid to a gas from a solid to a liquid from a gas to a plasma

Which metals are called noble metals

An uncovered pot of water lies out in the sun. which statements correctly describe what happens at the surface of the liquid water? 1. the vapor pressure remains constant regardless of the water temperature. 2. the vapor pressure is produced by water molecules that have evaporated. 3. the vapor pressure increases as the sun heats the water in the pot. 4. evaporation stops once the vapor pressure reaches a certain point. 5. evaporation and condensation both occur on the liquid’s surface.