When an oxygen atom forms an ion, it gains two electrons. what is the electrical charge of the oxygen ion?

a.
+2

b.
-2

c.
+1

d.
-1

The simple interest on a loan of $200 at 10 percent interest per year is $10 per year until the loan is paid off. $15 per year until the loan is paid off. $20 per year until the loan is paid off. $25 per year until the loan is paid off.

Which is the most accurate name for the ionic compound cas?

Calculate the volume of this regular solid. what is the volume of the cone? round your answer to the nearest hundredth