Copper is added to a solution of nitric acid. the solution becomes hot and changes from colorless to dark blue. what is the best explanation for the change in temperature?
a.
the copper and nitric acid repel each other, which produces heat.
b.
the increased volume of the solution causes heat to be released.
c.
the chemical reaction between the copper and the nitric acid produces heat.
d.
the blue color absorbs less energy, which causes heat to be released.

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.

How is the atomic number of a nucleus changed by alpha decay