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Katarina [22]
3 years ago
13

6. What is true about Calcium (Ca)?

Chemistry
1 answer:
sasho [114]3 years ago
8 0

Answer:

C. naturally uncombined with other elements.

Explanation: Calcium is a chemical element with the symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air.

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