Question

What is the charge on the cation in the ionic compound strontium fluoride?

Hint: Use your periodic table to help.

Select one:
a. 1+
b. 1-
c. 2+
d. 2-

Answer 1

Answer: the awnser is c

Explanation: A homogeneous mixture can only form when one of the substances can dissolve the other one. Oil and water cannot dissolve each other, so they must form a heterogeneous mixture with small particles of vinegar dispersed throughout the oil, yet not dissolved.