Answer:
NO2
Explanation:
Calculate moles of Nitrogen and oxygen (assume total mass is 100g as you only have percentages therefore there is 63.6g of N and 36.4g of O) This is the ratio that they are in but you need the ratio to be in whole numbers therefore divide each number of moles by 2.275 (the moles of oxygen) to calculate the empirical formula. Hope this helps!
Answer:
Endothermic
Explanation:
Heat is retained while exothermic means heat is released
Answer:
It would sink because the density of the ball, 0.802 g/cm3, is greater than the density of gasoline.
