What happens when an active metal reacts with water?

An active metal reacting with water produces an oxide or hydroxide and hydrogen gas.

What metals are reactive in water?

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.

What metal fizzes in water?

Sodium. When sodium is added to water, the sodium melts to form a ball that moves around on the surface. It fizzes rapidly, and the hydrogen produced may burn with an orange flame before the sodium disappears.

What is the indicator used to determine the activity of metals with water?

Summary. Lithium, sodium and potassium metals are added to water containing phenolphthalein indicator. The resulting metal hydroxide solutions change the indicator from clear to pink. Increasing reactivity of group one metals is demonstrated.

What is active metal test?

The reactivity of the active metals can be demonstrated by dropping pieces of lithium, sodium, and potassium into water. Lithium reacts slowly with water, sodium reacts much more rapidly, and potassium reacts violently.

What are active metals?

A metal is said to be an active metal when it reacts strongly and quickly with other elements due to the electrons in its structure and its ease of sharing the electrons with other elements.

Which metals do not react with water?

Gold and silver are two metals which, since gold and silver are the least reactive, do not react at all with water.

Does zinc react with water?

Zinc does not react directly with water. It depends on the temperature of both, the zinc metal and the water. Under normal conditions, zinc does not react with water. When zinc reacts with steam it produces zinc oxide and releases hydrogen gas.

Which element is most reactive with water?

Sodium is the alkali element that reacts most violently with water.

Is lithium reactive with water?

Lithium reacts intensely with water, forming lithium hydroxide and highly flammable hydrogen. The colourless solution is highly alkalic.

How do you test the reactivity of metals?

Place each of the metals in turn in a clean test-tube containing water and labeled with the symbol of the metal added. If bubbles of a gas are evolved, test the gas with a lighted match, this is called the pop test. If there is a slight explosion or pop hydrogen has been displaced from the acid.

How do you determine the reactivity of metals?

We can use the reactions of metals with acids to tell us how reactive that metal is. The more vigorously it reacts, the more reactive the metal. The slower the reaction (sometimes there is no reaction at all), the less reactive the metal.