Quick Answer: How Do You Identify Calcium Oxide?

What happens when calcium oxide reacts with water?

The formation of slaked lime (calcium hydroxide, Ca(OH)2) when water is added to lime (CaO) is exothermic.

CaO(s) + H2O (l) → Ca(OH)2(s) This reaction occurs when water is added to dry portland cement to make concrete, and heat evolution of energy as heat is evident because the mixture becomes warm..

What does calcium oxide and water make?

When calcium oxide (chemical formula: CaO) reacts with water (chemical formula: H2O), the following reaction takes place: The product of this reaction is calcium hydroxide, also known as slaked lime. Thus, when calcium oxide reacts with water, slaked lime is produced.

Is calcium oxide soluble in water?

WaterGlycerolCalcium oxide/Soluble in

Is calcium oxide and water an exothermic reaction?

Calcium oxide (lime), the material formed when the lumps are heated, is corrosive. It causes burns and is irritating to eyes, skin and the respiratory system. The reaction of calcium oxide with water is vigorous and exothermic.

Is calcium oxide toxic to humans?

* Calcium Oxide can affect you when breathed in. * Contact can severely irritate and burn the eyes and skin. * Breathing Calcium Oxide can irritate the lungs causing coughing and/or shortness of breath.