الذوبان والمحلول

Ahmad adds a spoonful of salt to hot water. Fill in the blank: The salt mixes in with the water to make a salt solution, meaning the salt has.

• disappeared

• dissolved

• melted

Sultan makes a cup of coffee using instant coffee grains. Select the correct statement.

• The coffee grains are the solvent.

• The water is the solute.

• The coffee grains and water form a solution.

Which property does a substance that dissolves have?

• Elasticity

• Electrical conductivity

• Solubility

• Magnetism

Which of the following ingredients is soluble in water?

• Oil

• Wood

• Sand

• coffee

Fill in the blank: Solubility is the ability of a _______________.

• solute to dissolve in a solvent.

• solute to absorb a solvent.

• solvent to make a solution invisible.

Fill in the blanks: A ___________ dissolves in a ___________ to make a solution.

• solution, solvent

• solvent, solute

• solute, solvent

• solution, solute

Which of the following is an example of a solution?

• Sand and rocks

• Sugar and vinegar

• Salt and pepper

• Oil and water

What is the scientific name for the substance that dissolves to form a solution? Hint: Use the diagram to help you.

• Solvent

• Solute

• Residue

• Mixture

Which substances are insoluble in water?

• Salt, sugar, and flour

• Sand and flour

• Salt and sugar