Assume 0.18 l of a 5.0 m solution of lead (ii) nitrate, pb(no3)2, reacts with a 2.6 m solution of sodium phosphate, na3po4, to produce lead (ii) phosphate, pb3(po4)2, and sodium nitrate, nano3. the problem requires that you determine the volume of sodium phosphate, na3po4, needed for the reaction to occur.

Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.

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.

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