Given the balanced equation representing a reaction:
f2(g) + h2(g) ==> 2hf(g)
what is the mole ratio of h2(g) to hf(g) in this reaction?
(1) 1: 1 (3) 2: 1
(2) 1: 2 (4) 2: 3

What is the number of moles in 15.0 g ash3?

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough