3. Components in a heterogeneous mixture are not in the same phase or the composition of the mixture is a) uniform
b) transparent
c) uneven
4. Mixing sand and salt in water then passing it through a filter separates out the sand because salt
in water and sand does not.
a) reacts
b) dissolves
c) disappears

Achemistry student weighs out of phosphoric acid , a triprotic acid, into a volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with solution. calculate the volume of solution the student will need to add to reach the final equivalence point. round your answer to significant digits.

What happens to isotopes that are unstable?

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride