1. Name a metal which reacts vigorously with water.
Give its reaction in word formula.
Answers
Answer:
Reactivity series of metals
Order of reactivity Metal Reactions with water or steam
↑ sodium (Na) vigorous reaction with cold water
↓ calcium (Ca) less vigorous reaction with cold water
least reactive magnesium (Mg) slow reaction with cold water, vigorous with hot water
Alkali metals
The alkali metals (Li, Na, K, Rb, Cs, and Fr) are the most reactive metals in the periodic table - they all react vigorously or even explosively with cold water, resulting in the displacement of hydrogen.
Metals react with water and produce a metal oxide and hydrogen gas. ... Calcium starts floating because the bubbles of hydrogen gas formed stick to the surface of the metal. Magnesium does not react with cold water. It reacts with hot water to form magnesium hydroxide and hydrogen.