2nd calculating half

What are the coefficients that will balance the skeleton equation below?: N2+H2 →NH3

1,3,2

When the following equation is balanced, what is the coefficient for HCl?: Mg(s)+HCL(aq)-->MgCl2(aq)+H2(g)

2

What are the correct formulas and coefficients for the products of the following double replacement reaction: RbOH+H3PO4

H3Rb+PO4OH

One of the products when aqueous Na2CO3 reacts with aqueous Sn(NO3)2 is

NaNO3, NaSn, Sn(CO3)2, CNO3

How many electrons are in the highest occupied energy level of a neutral chlorine atom

7

How many electrons are there in the highest occupied energy level of atom in group 5A elements

5

How many electrons does a gallium atom give up when it becomes an ion

3

How many valence electrons does an iodine atom have

7