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Review the names and chemical formulas for the five compounds. Which are correctly matched?

I) Li3N lithium nitride

II) H2S hydrogen sulfite

III) SO2 sulfur dioxide

IV) AlF3 aluminum trifluoride

V) H2O dihydrogen monoxide
Responses
A II
B IIII
C IIIIII
D IVIV
E V

1 answer

Let's review each of the compounds and their respective names:

I) Li3N - lithium nitride: This is correctly matched.

II) H2S - hydrogen sulfite: This is incorrect. H2S is actually hydrogen sulfide.

III) SO2 - sulfur dioxide: This is correctly matched.

IV) AlF3 - aluminum trifluoride: This is incorrect. The correct name is aluminum fluoride. "Trifluoride" is not used for compounds with aluminum.

V) H2O - dihydrogen monoxide: This is correctly matched.

So, the correctly matched compounds are I (Li3N), III (SO2), and V (H2O).

From the responses provided:

  • A (II) is incorrect.
  • B (IIII) is incorrect.
  • C (IIIIII) is incorrect.
  • D (IVIV) is incorrect.
  • E (V) is correct.

Based on the question regarding which are correctly matched, I, III, and V are the correct ones, but none of the options provided in the responses accurately reflect that.

If forced to choose from the given options, the best that aligns with one correct match is E (H2O as dihydrogen monoxide). However, note that more than one compound is correctly named.