Multiple Choice
What is the correct name for the compound with the formula XeO_3?
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3. Chemical Reactions
Naming Molecular Compounds
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Which of the following is the correct chemical formula for carbon trihydride?
A
C2H3
B
C3H
C
CH4
D
CH3
Verified step by step guidance1
Understand the meaning of the name 'carbon trihydride': 'carbon' indicates the presence of carbon atoms, and 'trihydride' means there are three hydrogen atoms bonded to the carbon(s).
Recall that the prefix 'tri-' means three, so 'trihydride' corresponds to three hydrogen atoms (H3).
Determine the number of carbon atoms: since no prefix is given before 'carbon,' it implies one carbon atom (C).
Combine the number of carbon and hydrogen atoms to write the chemical formula: one carbon atom and three hydrogen atoms gives CH3.
Verify the options given and confirm that CH3 matches the description of carbon trihydride, while the other formulas have different numbers of carbon or hydrogen atoms.
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