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Chlorine reacts readily with calcium. Calcium donates two electrons to this ionic bond and chlorine accepts one electron from calcium into its valance shell, so you need two chlorines to react with calcium.

Ca(2+) and Cl-

= CaCl2

Calcium chloride

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13y ago
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4mo ago

Fluorine (F) or oxygen (O) ions are likely to spontaneously react with calcium (Ca) due to their high electronegativity and ability to form stable compounds with calcium.

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Q: Which element or ion will spontaneously react with Ca?
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Which metal will react spontaneously with water?

Sodium is a metal that will react spontaneously with water, producing sodium hydroxide and hydrogen gas. This reaction is highly exothermic and can be violent, often resulting in the production of heat and flames.


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The formula for a calcium ion is Ca2+. This represents a calcium atom that has lost two electrons, resulting in a 2+ charge.


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Aqueous hypochlorous acid and aqueous calcium hydroxide react to produce aqueous calcium hypochlorite and water. This is a double displacement reaction where the hydrogen ion from the acid is replaced by the calcium ion, forming a new salt.


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