Answer:
Chemical changes cause a substance to change into an entire substance with a new chemical formula. Chemical changes are also known as chemical reactions. The “ingredients” of a reaction are called reactants, and the results are called products.
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Hey There!
Volume = 4.7 L
Molarity = 4.23 M
Therefore:
n = M *V
n = 4.23 * 4.7
n = 19.881 moles of HCl
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D
Explanation: this was easy for me
Answer choice is , 2