What changes when you add a neutron to an atom? a.
just the mass changes
b.
just the charge changes
c.
just the element changes
d.
the mass, the charge, and the element

What is the percentage of hydrogen in nitrogen trihydride

At which temperature would a reaction with ah= -220 kj/mol and as=-0.05 kj/(mol-k) be spontaneous?

Describe the process that was used in this lab to create magnesium oxide, specifically identifying the type of chemical reaction. explain why the product had a higher mass than the reactant, and how this relates to conservation of matter.