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1 September, 10:41

Which of the following shows the balanced equation for Ca + 02 - CaO?

Ca + O2 - CaO

2Ca + O2 - 2CaO

4Ca + 202 - 2CaO

2Ca + 202 - 2CaO

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  1. 1 September, 10:58
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    Balanced Chemical equation:

    2Ca + O₂ → 2CaO

    Explanation:

    Chemical equation:

    Ca + O₂ → CaO

    Balanced Chemical equation:

    2Ca + O₂ → 2CaO

    This is the balanced equation. There are two calcium and two oxygen atoms on both side of equation that's why it completely follow the law of conservation of mass.

    Law of conservation of mass:

    According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

    This law was given by french chemist Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.
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