SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How many chlorine (Cl) atoms are in CaCl2?
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2
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4
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1
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3
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Explanation:
Detailed explanation-1: -Calcium Chloride has two chlorine atoms for each calcium atom.
Detailed explanation-2: -In CaCl2, the chemical formula tells us that there are two moles of Cl1-in every mole of compound, and three moles of total ions (1 mole Ca2+, 2 moles Cl1-) in every mole of compound.
Detailed explanation-3: -It contains one calcium and two chlorine atoms. Therefore, the formula mass of CaCl2 is 111 amu.
Detailed explanation-4: -If we have two moles of calcium chloride, then we just double this amount to get (d) 4 moles of chloride ions.
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