What causes a solution to turn cloudy?

Precipitation reactions A precipitation reaction occurs upon the mixing of two solutions of ionic compounds when the ions present together in the mixture can form an insoluble compound. In such cases, the solution turns visibly cloudy, a phenomenon known as precipitation.

What happens when you react sodium with hydrochloric acid?

The acid will react to produce a salt and water – no gas is produced. Also, in this reaction there is no colour change.

How does sodium thiosulfate react with hydrochloric acid in a practical?

The reaction of sodium thiosulfate and hydrochloric acid generates sulfur dioxide gas, which is a skin and eye irritant. Perform this demonstration in a well-ventilated lab only. Avoid contact of all chemicals with eyes and skin. Wear chemical splash goggles, temperature-resistant gloves, and chemical-resistant apron.

What happens when sodium thiosulphate reacts with dilute hydrochloric acid?

-Sodium thiosulphate reacts with dilute hydrochloric acid to produce sulphur dioxide, sodium chloride, sulphur and water. The sulphur formed in this reaction is insoluble and present in the mixture as a white or pale-yellow precipitate or a colloid that gives a milky appearance and thus makes the solution opaque.

Why the reaction between sodium and dilute hydrochloric acid is not done?

These reactions are highly exothermic. Means a lot of energy is released in these explosives. So, this cannot be done in the laboratory. So, Potassium and Sodium are used for reaction with dilute hydrochloric acid or dilute Sulphuric acid for the preparation of hydrogen gas in the laboratory.

Does sodium hydroxide react with sodium?

Reaction with air, water, and hydrogen In ordinary air, sodium metal reacts to form a sodium hydroxide film, which can rapidly absorb carbon dioxide from the air, forming sodium bicarbonate. Sodium monoxide (Na2O) is ordinarily formed upon oxidation of sodium in dry air.