Answer: a)
b)
c)
Explanation: A neutral compound is to be formed to get a stable compound. The charges have to be balanced , thus the valencies of ions are exchanged and the neutral compounds result.
These all are ionic compounds which result by complete transfer of electrons from metals to non metals.
Answer:
Not sure were to start....
Explanation:
What is the actual yield of a reaction?
A. The calculated amount of product
B. The fractional amount of product
C. The predicted amount of product
D. The measured amount of product
D
Answer:
"nonmetal, nonmetal"
Explanation:
Oxygen is a non metal and Nitrogen is a non metal. It is 8th element of the periodic table. It is located in period 2 and group 16.
Nitrogen lies at the group 15 of the periodic table. Its atomic no is 7. Its valency is 2.
Hence, the correct option is (c) "nonmetal, nonmetal".