because the total positive charge on 
is two.
cation and oxide 
is an anion with oxidation state of -2. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral What is the formula unit for a compound made from ca and o?
cao because the total negat...
Chemistry, 06.12.2019 00:31 caldonjoshhsms2061
What is the formula unit for a compound made from ca and o?
cao because the total negative charge on o is two.
cao because the total negative charge on ca is one.
cao because the total positive charge on o is one.
cao because the total positive charge on ca is two.
Answers: 3
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