A) Will a precipitate form for the following reaction below? If so, what is the name of the precipitate? zinc nitrate + barium hydroxide →
b)When solutions of lithium phosphate and barium chloride are mixed and then pass through a filter what gets trap in the filter paper?

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.

Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3