4/2 He + 4/2He—->? If this question was completed, which statement would it best support?

How many atoms of oxygen are contained in 160 grams of n2o3

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.