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OpenStudy (austindeboe18):
Which of the following is a correctly balanced equation? A. 2Cu + O2 --> 2CuO B. Mg + O2 --> MgO2 C. 3KCl + HNO3 --> 3HCl + KNO3 D. CaCO3 --> CaO + CO3
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OpenStudy (jfraser):
which reaction has the same number of every different type of atom on both sides? I like to make a table that lists all the atoms of the reaction on both sides and add them up
OpenStudy (austindeboe18):
Thank you so much
OpenStudy (austindeboe18):
Is it B ?
OpenStudy (jfraser):
B is balanced, but it's not a correct reaction, because magnesium and oxygen don't combine in a 1:2 ratio
OpenStudy (austindeboe18):
I don't know it
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