Answer:
The chemical formula of calcium hydroxide can be determined using the valencies (charges) of calcium (Ca) and hydroxide (OH⁻) ions.
1. Calcium (Ca) has a valency of +2 because it tends to lose 2 electrons to achieve a stable electron configuration.
2. The hydroxide ion (OH⁻) has a valency of -1 because it carries a single negative charge.
To balance the charges in the compound, we need two hydroxide ions for every calcium ion. So, the chemical formula of calcium hydroxide is:
Ca²⁺ + 2OH⁻ → Ca(OH)₂
Therefore, the chemical formula of calcium hydroxide is Ca(OH)₂.
Ca^+2 OH^-1
Explanation:
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Answer:
The chemical formula of calcium hydroxide can be determined using the valencies (charges) of calcium (Ca) and hydroxide (OH⁻) ions.
1. Calcium (Ca) has a valency of +2 because it tends to lose 2 electrons to achieve a stable electron configuration.
2. The hydroxide ion (OH⁻) has a valency of -1 because it carries a single negative charge.
To balance the charges in the compound, we need two hydroxide ions for every calcium ion. So, the chemical formula of calcium hydroxide is:
Ca²⁺ + 2OH⁻ → Ca(OH)₂
Therefore, the chemical formula of calcium hydroxide is Ca(OH)₂.
Answer:
Ca^+2 OH^-1
Explanation: