What happens when a metal reacts with water Class 10?
Metals react with water to form hydroxide,hydrogen gas and heat is evolved. The reaction of Ca with water is less violent. The heat evolved in not sufficient for hydrogen to catch fire. Ca starts floating because bubbles of hydrogen gas formed stick to the surface of metal.
What happens when metal react with water class 8?
When a metal react with water,then a metal hydroxide and hydrogen gas is formed. The intensity of reaction of a metal with water depends on its chemical reactivity. Some metals react vigorously even with cold water,some react with hot water,some metals react with steam whereas some metals do not react even with steam.
Did any metal produce fire on water?
Yes, Potassium and sodium react vigorously with water and produce fire.
Why are alkali metals so reactive with water?
The most reactive alkali metal with water is CAESIUM . This is because, reactivity with water increases as one goes down the group of the alkali metals in the periodic table.
What element reacts most violently with water?
Answer Wiki. Sodium reacts violently with water because it is much more active than hydrogen. Although water is covalent, not ionic, it is helpful sometimes to consider water to be [H+][OH-], since after all hydrogen has a slight excess of positive charge.
What are the effects of heavy metals in water?
However, certain heavy metals are of grave concern as they can harm different organs even at low exposure levels. Other heavy metals found in drinking water such as lead, mercury, arsenic, and cadmium has no beneficial effects on your body. In fact, their accumulation inside the body can cause severe health problems.
What is the reaction of metals with water?
Sodium is a very reactive metal,therefore sodium metal react violently even with cold water. Na+2 H2O —-> 2NaOH+H2