Question

9. What are the two classes of matter? A. Atom & molecule C. Substance and mixture B. Element and compound D. Plant and animal cells 10. Which of the following is a property of mixture? A. It has a definite composition C. It consists of a single phase B. It has a heterogeneous composition D. It can be chemically separated into its components 11. What does it indicate when sugar is heated in a test tube until it is completely changed into a black mass and droplets of water? The sugar is a / an A. Solution B. Mixture C. Element D. Compound 12. Which of the following statements distinguishes pure substances from mixtures? A. Can be separated by physical means B. Consists of two or more kinds of matter C. Have no specific solubility and densities D. Have constant boiling temperature and melting temperature. 13. A gaseous material has a strongl smell, evaporates quickly, particularly boils at 33.34 degrees celcius and melts at -77.73 degrees Celcius. This matter can be classified as A. Substance B. solution C. mixture D. metal 14. Which of the following will Jerry do to segregate the rubber bands of different colors ? A. Decantation B. Filtration C. Evaporation D. Physical manipulation 15. Glenn wants to separate salt and water mixture. Which of the following will help him to successfully separate the components of a mixture? A. Using a magnet B. Dissolving C. Decantation E. Evaporation 16. What substance can dissolve other substance in a solution? A. Solute B. Solvent C. Mixture D. All of the above​

Answer 1

9.substance and Mixture.

Answer 2

Answer:

C. Substance and mixture .

Explanation:

What are the two classes of matter  Substance and mixture .