Calcium Reacting with Water

Ca + 2H2O → Ca(OH)2 + H2

अवलोकन

Calcium reacts with water to produce calcium hydroxide (limewater) and hydrogen gas. The reaction is moderately vigorous, producing a milky suspension of sparingly soluble calcium hydroxide. Calcium sinks in water (unlike sodium) and reacts at the bottom of the vessel.

प्रतिभागी

भूमिका पदार्थ गुणांक अवस्था
अभिकारक Calcium Ca 1 (s)
अभिकारक Water H₂O 2 (l)
उत्पाद Calcium Hydroxide Ca(OH)₂ 1 (s)
उत्पाद Hydrogen H 1 (g)

रोजमर्रा का उदाहरण

The milky appearance of hard water deposits and limescale is related to calcium hydroxide and carbonate formation from calcium's reactions in water.

औद्योगिक महत्व

Understanding calcium-water reactions is important for water hardness treatment, concrete chemistry, and calcium hydroxide production for industrial applications.

गुण

प्रकार
Single Replacement
प्रतिवर्ती
नहीं
ऊर्जा
ऊष्माक्षेपी
ΔH
-635.1 kJ/mol

संबंधित अभिक्रियाएँ

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Frequently Asked Questions

What is the equation for Calcium Reacting with Water?
The balanced equation is: Ca + 2H₂O → Ca(OH)₂ + H₂.
What type of reaction is Calcium Reacting with Water?
Calcium Reacting with Water is a single replacement reaction.
Is Calcium Reacting with Water exothermic or endothermic?
Calcium Reacting with Water is exothermic (releases energy). The enthalpy change (ΔH) is -635.1 kJ/mol.