Question

If copper carbonate system is heated for too short a time, what will you notice for mass percent of copper be too large or too small?

Answer 1

The mass percent of copper as element is the same.

Step-by-step explanation:

First of all we need the reaction that is presented below:

`CuCO_(3 (s)) +Heat` →
`CuO_((s)) + CO_(2 (g))`

The mass percent of copper (Cu) as element is the same because of during the reaction the element only transform its nature from copper carbonate (
`CuCO_(3 (s))`) to copper oxide (
`CuO_((s))`), the latter is a solid and will remain in the system.

On the other hand, you will note that the global percentage mass will be small because of the reaction produce (
`CO_(2 (g))`) that is a gas and this one will escape for the system.

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