Complete and balance the equations for the following acid-base reactions: a) H2CO3 + Sr(OH)2 --> b) HClO4 + NaOH --> c) HBr + Ba(OH)2 --> d) NaHCO3 + H2SO4

Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth. what is the independent variable for this experiment?

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion