Which statement is true for the given reaction? zn + pbso4
a) zinc will combine with lead sulfate during the reaction.
b) zinc will replace lead during the reaction.
c) no reaction will occur.
d) zinc will replace sulfate ion during the reaction.

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.