Basically for the first question, it’s 470.58 grams of potassium nitrate. Then for the second, it’s 0.34 moles of potassium nitrate. I hope the work makes sense!
Secondary air pollutants are the ones that are formed as a result of reactions
between primary pollutants and other elements in the atmosphere, such as ozone
Answer:
false and rust is hydrated iron oxide so it is a form off iron
Answer:

ethanal
This is because hydrogen is bonded with oxygen atom which is highly electronegative.