Cumulative Exam
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What is the true ratio of atoms in a molecule or formula unit called?
O the molecular formula
the molar mass
O the percent composition
the empirical formula

Think about how you can use le chatelier’s principle to find possible solutions to the design problem. describe at least two ways to increase the yield (amount) of ammonia based on this principle.

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

Adilute aqueous potassium nitrate solution is