6. How many grams of barium chloride are produced when 1.25 x 10^23 molecules of HCL reacts with barium according to the following equation?
Word equation:

What happens to energy in an open system?

21. consider the following chemical reaction: n2+ o2 2 no if 10.0 g of n2 reacts with excess oxygen then how many grams of no can be formed? a) 10.7 g b) 21.4 g c) 32.9 g d) 42.8 g page 4 of 8

At element makes up all organic compounds?