Science Quiz (Review)

1. Which of the following describes a mixture?

• 1. A chemically combine substance.

• 1.  Components that are elements combine.

• 1. Physical combination of two or more substances in which identities are retained.

• 1. Two or more substances that cannot be separated.

1. This is formed when one substance is dissolved in another substance.

• 1. aerosol  

• solute

• solution

• solvent

1. The substance being dissolve in solution.

• 1. sands 

• solute

• solvent 

• alloy

1. Define the term soluble.

• Cannot dissolve in water.

• Partially dissolve in water.

• Can dissolve in water.         

• None of the above. 

1. Homogeneous mixture has the same properties. It means that the substances mixed

      thoroughly and after stirring, it appeared as one substance. You can no longer distinguish

      one component from the other. What is other term for homogeneous mixture?

• Solute

• Solution

• Solvent  

• Dissolution        

Do all solutes dissolve in all solvents?

• Not all          

• yes

• no

• Maybe    

1. What is the difference between a suspension and solution?

• 1. A suspension is less concentrated than a solution.

• A suspension is more concentrated than a solution.

• 1. A suspension is heterogeneous while a solution is a homogeneous.

• 1. A suspension is homogeneous while a solution is heterogeneous.

1. Which of the following solute and solvent is not belong to a suspension mixture?

• 1. oil and water

• flour and water      

• water and sugar    

• 1. oil and vinegar

1. Which colloid has both protective and decorative function?

• Insecticide Spray

• Paint    

• Ink

• Cream      

1. Why does the sky looks blue in daytime and looks red during sunset?

• 1. Because of Tyndall effect.

• 1. Because of the particles that are easily seen by the eye.

• Because of the suspended particles in the air.

• Because of Brownian movement.