Balance the following chemical equation _Na + _Br2 —> _ NaBr

2, 1, 2

Explanation:

Na + Br2 —> NaBr

To balance the equation, we do the following:

There are 2 atoms of Br on the right side and 1atom on the left side. It can be balance by putting 2 in front of NaBr as shown below:

Na + Br2 —> 2NaBr

Now, we have 2 atoms of Na on the right side and 1atom on the left. Thus, it can be balance by putting 2 in front of Na as shown below:

2Na + Br2 —> 2NaBr

Now, the equation is balanced.

The coefficients are 2, 1, 2

i just learnt this recently but i need to look through my notes again

im not exactly sure but i think its b!