Balance the following equation by adding the correct coefficients if needed:

+ → +

answer the following questions about this chemical equation:

1. why is it important to balance chemical equations?

2. explain the steps to balance the chemical equation above.

question 1 options:

who ever answers first i will mark brainiest

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

pv=nrt

explanation:

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.