Answer:
2 Na + 1 Cl2 -> 2 NaCl
Explanation:
The answer is really simple, because if you have 1 nonmetal element that has a subscript of 2, you need to multiply the product and the first reactant by 2 to balance it.
NiO Does Not Dissolve In An Aqueous Solution Of NaNO3.
magnet B has a greater magnetic pull than magnet A