Multiple Choice
Which of the following is the correct chemical formula for calcium nitrate?
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3. Chemical Reactions
Naming Ionic Compounds
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Which of the following is the correct chemical formula for sodium fluoride?
A
NaF
B
Na2F
C
KF
D
NaCl
Verified step by step guidance1
Identify the elements involved: sodium (Na) and fluoride (F).
Determine the charges of the ions: sodium typically forms a +1 ion (Na\^{+}), and fluoride forms a -1 ion (F\^{-}).
Combine the ions in a ratio that balances the total positive and negative charges to make a neutral compound.
Since both ions have charges of magnitude 1 but opposite signs, they combine in a 1:1 ratio.
Write the chemical formula by placing the symbols together without any subscripts (since the ratio is 1:1), resulting in NaF.
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