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19-01-2021
Chemistry

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An ionic compound forms when calcium reacts with iodine. If a sample of the compoundcontains 7.4 x 1021 calcium ions, how many iodide ions does it contain

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cwrw238 cwrw238

19-01-2021

Answer:

Below.

Explanation:

The formula for calcium iodide is CaI2.

The number of iodide ions is therefore:

2 * 7.4 x 1021

= 14.8 x 1021.

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