D -a substance made of more than one type of atom
Answer:
There is a relationship between the strength of an acid (or base) and the strength of its conjugate base (or conjugate acid): The stronger the acid, the weaker its conjugate base. The weaker the acid, the stronger its conjugate base. The stronger the base, the weaker its conjugate acid.
explanation
The strength of an acid and a base is determined by how completely they dissociate in water. Strong acids (like stomach acid) break down or dissociate in water. Weak acids maintains their protons in water.
So if the compound has the smallest gram formula mass it has the highest percentage composition by mass of strontium
Answer: The answer to the first one is the second option and the answer for the second one is the first option.
Explanation:
The focal length, like you said it's the distance between the FOCAL point and the mirror.
Hope this helps.... :)
