Multiple Choice
Which of the following is the correct chemical formula for bromine pentachloride?
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3. Chemical Reactions
Naming Molecular Compounds
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Which of the following is the correct chemical formula for tetraphosphorus hexasulfide?
A
PS6
B
P4S6
C
P4S2
D
P6S4
Verified step by step guidance1
Understand the naming convention for binary molecular compounds, where prefixes indicate the number of atoms of each element in the compound.
Identify the prefix 'tetra-' which means 4, indicating there are 4 phosphorus (P) atoms in the compound.
Identify the prefix 'hexa-' which means 6, indicating there are 6 sulfur (S) atoms in the compound.
Combine the number of atoms with the element symbols to write the chemical formula: 4 phosphorus atoms and 6 sulfur atoms gives P4S6.
Verify that the formula matches the prefixes and the elements given in the name tetraphosphorus hexasulfide.
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