Multiple Choice
Which of the following is the correct chemical formula for lead(II) carbonate?
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3. Chemical Reactions
Naming Ionic Compounds
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Which of the following is the correct chemical formula for table salt?
A
CaCl2
B
KCl
C
NaCl
D
Na2SO4
Verified step by step guidance1
Understand that table salt refers to common sodium chloride, which is composed of sodium (Na) and chloride (Cl) ions.
Recall that sodium typically forms a +1 charge (Na\^+) and chloride forms a -1 charge (Cl\^-), so they combine in a 1:1 ratio to form a neutral compound.
Write the chemical formula by combining one sodium ion and one chloride ion, resulting in NaCl.
Compare the given options: CaCl2 (calcium chloride), KCl (potassium chloride), NaCl (sodium chloride), and Na2SO4 (which is not a common formula and likely meant to be Na2SO4, sodium sulfate).
Identify that NaCl matches the composition of table salt, making it the correct chemical formula.
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