Balancing the equation below:

Can anyone please help me out with this formula equation.

1: 1, 2, 3

2: 2, 2, 3

3: 2, 1, 2, 1

Explanation:

A simple way to do this:

Take an extra page and write your formula at the top, then take your elements (for example in #1, N and H) and write them on the reactants and products sides. On the reactants side write down the numbers you have (N-2, H-2) and the same for the products side (N-1, H-3). Find your GCF's and then you got your answer. It takes a bit of time to figure out HOW to do it but its a good skill to have. I have attached #1 for you.

If you have questions let me know!

Hope that helps

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

i'm assuming that the correct answer is indeed the first one/ "a"..