7.0 g of nitrogen is reacted with 5.0 g of hydrogen to produce ammonia according to the chemical equation shown below. Which one of the following statements is false? N2(g) + 3 H2(g) 2 NH3(g)
A) 3.5 g of hydrogen are left over.
B) Hydrogen is the excess reactant.
C) Nitrogen is the limiting reactant.
D) The theoretical yield of ammonia is 15 g.
Question 2
Which of the following laws states that the properties of the elements recur in a repeating pattern when arranged according to increasing atomic number?
A) law of atomic numbers
B) law of constant composition
C) law of periodic properties
D) periodic law
E) none of the above
Hand mnemonic for the basic atmosphere composition being 4/5 nitrogen and 1/5 oxygen.
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