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Which of the following is the correct name for the Al^{3+} ion?
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3. Chemical Reactions
Naming Ionic Compounds
Scelta multipla
Which of the following is the correct chemical formula for sodium chloride?
A
Na2Cl
B
NaCl
C
Na2Cl2
D
NaCl2
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Identify the ions involved: Sodium (Na) forms a cation with a +1 charge (Na\^+), and chloride (Cl) forms an anion with a -1 charge (Cl\^-).
Determine the ratio of ions needed to balance the charges so that the overall compound is electrically neutral.
Since both sodium and chloride have charges of equal magnitude but opposite sign (+1 and -1), they combine in a 1:1 ratio.
Write the chemical formula by placing the symbols of the ions together without any subscripts, as one of each ion is needed: NaCl.
Verify that the formula is neutral by confirming the total positive charge equals the total negative charge.
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