How many grams of oxygen (O2) is required to burn 28.8 g of ammonia (NH3)? 4NH3 + 7O2 → 4NO2 + 6H2O

Molar Masses

NH3=17.0305 g/mol

O2=31.998 g/mol

NO2=46.0055 g/mol

H2O=18.0153 g/mol

a)15.3 g
b)94.9 g
c)54.1 g
d)108 g

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b. colder climates near the equator c. large waves on the cost of europe d. warm climates in northern europe

Fred is studying a substance that is made out of only one element. this means that