Calcium Reacting with Water

Ca + 2H2O → Ca(OH)2 + H2

Genel Bakış

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.

Katılımcılar

Rol Madde Katsayı Hal
Reaktan Calcium Ca 1 (s)
Reaktan Water H₂O 2 (l)
Ürün Calcium Hydroxide Ca(OH)₂ 1 (s)
Ürün Hydrogen H 1 (g)

Günlük Örnek

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

Endüstriyel Önemi

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

Özellikler

Tür
Single Replacement
Geri Dönüşümlü
Hayır
Enerji
Ekzotermik
ΔH
-635,1 kJ/mol

İlgili Reaksiyonlar

Aluminum Reacting with Iron(III) Oxide (Thermite) Chlorine Displacing Iodine from Potassium Iodide Magnesium Reacting with Steam Lithium Reacting with Water Aluminum Reacting with Hydrochloric Acid Aluminum Reducing Chromium Oxide (Aluminothermic) Iron Reacting with Hydrochloric Acid Iron Displacing Copper from Copper Sulfate Zinc Displacing Copper from Copper Sulfate Fluorine Displacing Chlorine from Sodium Chloride

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.