Air and tap water are mixtures. Explain.

Why is tap water a mixture ?

Lassaigne's extract is prepared in distilled water and not in tap water. Explain.

We can get water from a mixture of salt and water by evaporation.

Tap water is a mixture. True or false?

It is easier to lift a heavy stone under water than in air. Explain.

A mixture has 18 g water and 414 g ethanol . The mole fraction of water in mixture is (assume ideal behaviour of the mixture )______.

The given below experiment is to show tap water contains dissolved gases. Based on this, answer the below questions: Name the quantity which tells you about the presence of dissolved gases in tap water from the experiment?

Classify the following substances as either being a homogenous or heterogenous mixture? (1) Sugar + Water (2) Sand + Water (3) mixture of different pulses (4) Air in the atmospheric column (5) Soda (6) Alloys

In a mixture of 126 "kg" of milk and water, milk and water are in the ratio 5 : 2 . How much water must be added to the mixture to make this ratio 3 : 2 ?

Two taps A and B supply water at temperature 10^(@)C and 50^(@)C respectively . Tap A alone fills the tank in 1 hour and tap B alone fills the tank in 3 hour. If we open both the taps together in the empty tank , if the final temperature of the water in the completely filled tank is found to be 5alpha ("in" "^(@)C) . Find the value of alpha . Neglect loss of heat to surrounding and heat capacity of the tank.