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43 votes
43 votes
Two molecules of mercury oxide decompose into 2 molecules of mercury and 1 molecule of oxygen gas. Which of the following equations correctly describes this reaction?

Select one:
a. A
b. B
c. C
d. D​

Two molecules of mercury oxide decompose into 2 molecules of mercury and 1 molecule-example-1
User Hoots
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1 Answer

8 votes
8 votes

Answer:

This one's pretty simple. Mc and Pr aren't even actual elements. The symbol for Mercury is Hg, Mn is Manganese.

The correct answer would be D

2 moles of HgO decomposing (essentially splitting apart into their original elements) into 2 moles of Hg and 1 mole of O2 (Oxygen is a diatomic molecule meaning it always has 2 of itself attached, and O2 is always in its gaseous form)

User Andel
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