Stuff about the earth and tectonic plates, and about space and stuff.
Answer:
Explanation:
30+38
so this is the isosotope of Zn that weighs 68
-so Zn68
Mg is magnesium. NO3 is nitrate. This gives you magnesium nitrate as an answer.
Answer:
A physical property is a characteristic of matter that is not associated with a change in its chemical composition. Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity.
Explanation:
