Answer:
A.
Explanation:
It would be A. because the question is asking how the harmful chemicals have an effect on the environment. This answer also proves that even though we don't mean to harm the environment it still happens because we are using these chemicals for things in our daily life.
Molarity= moles/litres
.42M=x moles/.275litres
xmoles=.42M*.275litres= .1155 moles
molar mass of KClO3 = 122.548 grams/moles
mass= 122.548grams/moles* .1155moles= 14.15 grams of PotassiumClorate.\Hopes this loves or thanks.
Electrons travel around the nucleus atom