Multiple Choice
Which of the following is the correct chemical formula for carbon tetrachloride?
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3. Chemical Reactions
Naming Molecular Compounds
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Which is the correct formula for the compound dinitrogen monoxide?
A
NO2
B
NO
C
N2O
D
N2O3
Verified step by step guidance1
Step 1: Understand the naming conventions for molecular compounds, especially those involving nonmetals. The prefixes (mono-, di-, tri-, etc.) indicate the number of atoms of each element in the compound.
Step 2: Analyze the name 'dinitrogen monoxide'. 'Di-' means two atoms of nitrogen, and 'mono-' means one atom of oxygen.
Step 3: Translate the prefixes into the chemical formula by placing the number of atoms after each element symbol: two nitrogens (N2) and one oxygen (O).
Step 4: Combine the symbols and numbers to write the formula as N2O, which corresponds to dinitrogen monoxide.
Step 5: Verify that the other options do not match the name: NO2 is nitrogen dioxide, NO is nitric oxide, and N2O3 is dinitrogen trioxide, so they are incorrect for dinitrogen monoxide.
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