Chemistry: Fill in the gaps please?

The ones in CAPITALS are the ones I have filled in but I'm not sure if it is right...

The two elements present in all carbonates are ______ and ______.

Magnesium carbonate has the formula, ______. It is a compound because it contains more than one type of ATOM bonded TOGETHER. When it is heated, it REACTS to give magnesium OXIDE and carbon DIOXIDE gas. This type of reaction is called THERMAL decomposition. The gas can be tested for using _______ which goes _______ if the gas is present.

Thanks x

3 Answers

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  • MontyH
    Lv 5
    1 decade ago
    Favorite Answer

    Carbon, Oxygen

    MgCO3

    a lit match

    out

  • Anonymous
    1 decade ago

    The two elements present in all carbonates are ___CARBON___ and ____OXYGEN__.

    Magnesium carbonate has the formula, ___MgCO3___. It is a compound because it contains more than one type of ATOM bonded TOGETHER. When it is heated, it REACTS to give magnesium OXIDE and carbon DIOXIDE gas. This type of reaction is called THERMAL decomposition. The gas can be tested for using ____LIGHTED SPLINT___ which goes ____OUT___ if the gas is present.

  • 1 decade ago

    Carbon and Oxygen

    MgCO3

    litmus paper red

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