Which of the following is not a way that matter changes phase?
a melting
b freezing
c evaporation
d mixing

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

How does the atmosphere to make earth livable? check all that apply. causes the seasons contains oxygen provides warmth creates important nutrients blocks harmful energy from the sun plz like !