Answer:
B 1 and 3
this might be able to help you
there is nothing with which it can react
Explanation:
Answer:Your compound is very impure
Explanation:
Purity of a compound is the singular most important determinant of its melting point. A very impure substance will definitely melt over a range of temperatures. Hence, melting point can be used as a characteristic or yardstick in the determining of the purity of compounds or identifying unknown compounds.
Formula is moles =massin grams of HNO3/molar mass of HNO3
The charge of a nucleus is positive