On mixing the salt in water, the surface tension of water will
When the salt is added to water, the surface tension of liquid mixture will
Question 5
Salt can be separated from its solution (salt dissolved in water) because (a) mixing of salt in water is a change that can be reversed by heating and melting of salt (b) mixing of salt in water is a change that cannot be reversed (c) mixing of salt in water is a permanent change (d) mixing of salt in water is a change that can be reversed by evaporation
An astronaut on the surface of moon is thirsty. He decides to synthesize water by mixing hydrogen and oxygen. Will the mass ratio of hydrogen to oxygen in water remain the same on moon's surface as that on earth?