Explain why calcium metal after reacting with water starts floating on its surface. Write the chemical equation for the reaction.

Why does calcium metal after reacting with water starts floating on its surface? Write the chemical equations for the reaction.

Quicklime reacts with water to produce calcium hydroxide write the chemical equation for the reaction.

Name the alkali metals which reacts the nitrogen of air. Write the chemical equation for the reaction involved.

(a) What is a balanced chemical equation ? Why should chemical equations be balanced ? (b) Aluminium burns in chlorine to from aluminium chloride (AlCl_(3)). Write a balanced chemical equation for this reaction. (c ) Fotassium metal reacts with water to give potassium hydroxide and hydrogen gas. Write a balanced chemical equation for this reaction

Solid calcium oxide was taken in a container and water was added slowly to it. Write the balanced chemical equation of this reaction.

Calcium carbide reacts with water to give ethyne or acetylene gas and calcium hydroxide. Write the balanced chemical equation for this reaction.

Calcium carbide reacts with water to give ethyne or acetylene gas and calcium hydroxide. Write the balanced chemical equation for this reaction.

Calcium carbide reacts with water to give ethyne or acetylene gas and calcium hydroxide. Write the balanced chemical equation for this reaction.

(a). What happens when calcium reacts with water? Write the chemical equation of the reaction of calcium with water. (b). Write the chemical equation of the reaction which takes place when iron reacts with dilute sulphuric acid. What happens when the gas produced is ignited with a burning matchstick?

Explain why ice floats on water.