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Questions (2)
Which of the following is a correctly balanced reaction equation?
-CaCl2+ NaOH -> NaCl2+ Ca(OH) -CaCl2 + 2NaOH -> 2NaCl + Ca(OH)2
4 answers
416 views
A student claims that the reaction of hydrogen and oxygen to form
water is evidence supporting the claim that mass is conserved
1 answer
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Answers (2)
“This last one is just double the correct equation which is #2.” I don’t understand this. So is #2 or #4 the correct answer?
Everyone says that. How am I supposed to know
