2. Which of the following is the correct chemical equation for the reaction between calcium and oxygen to form calcium oxide?
4CaO + 302-2Ca203
Ca + O2- CaO2
2Ca + O2-2Cao
Са + O - Сао
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Answer:
2 one is the right ans
Explanation:
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Explanation:
total 6 atoms in two molecules of aluminum phosphate
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