SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which number should go in the blank? 2 Na+ ____ Cl2
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1
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2
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3
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0
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Explanation:
Detailed explanation-1: -1 Answer. The balanced equation is 2Na(s)+Cl2(g) → 2NaCl(s) .
Detailed explanation-2: -They represent how many of each reactant or product (atom, molecule, or mole) take part in the reaction. In the above example we added a two in front of the Na and NaCl symbols to indicate 2 sodium atoms react with 1 chlorine molecule to give 2 sodium chloride molecules.
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