Please help!! How many moles of NO2 are equivalent to 74.3 grams of NO2?
(N = 14.01 g/mol, O = 16.00 g/mol)

Define a is a tiny pavket of energy

Identify the correct mole ratio for each substance. sodium chloride (nacl) na: cl = 1: ammonium nitrate (nhno) h: o = 4:

Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope