1) Oxygen and boron are in the same period . When they form a compound----- is written first.Phosphorus and arsenic are the same group. When they form a compound------is written first.
A) oxygen/phosphorus
B)oxygen/arsenic
C)boron/phosphorus
D)boron/arsenic
answer is D
2) The ionic compound cacl2 would be correctly named.
A) calcium chloride
B)monocalcium dichloride
C)calcium(I)chloride
D)all of the above
answer is A
1 answer
I agree with both answers.