7.Wwwhite powder was tested and heated. After some time, it melts completely. Liquid B What does it imply? A It is a mixture, B It is a pure substance. C. It is a homogeneous mixture. D. It is a combination of pure substance and mixture. Two liquids were observed and heated. The data gathered is shown in the table below Temperature (C) Liquid A At start of boiling 100 80 After 30 sec 100 85 After 60 sec 100 84 After 90 sec 100 86 8. Based on the table above, which of the following is TRUE about Liquid A? A. It has a fixed boiling point. B. It is heterogeneous. C. It is a mixture. D. It is an element. 9. Which of the following could be Liquid A? A. Fruit juice B. Soft drinks C. Water D. water - salt solution 10. Ethan wants to separate the marbles in a jar full of water. Which of the following is the BEST way to separate the mixture? A. Decantation B. Dissolving C. Evaporation D. Using a magnet 11. Which of the following will Jeofrey do to segregate the rubber bands of different colors? A Decantation B. Evaporation C. Filtration D. Physical manipulation 12. What is the BEST way to use in separating iron fillings from a mixture? A. Filter paper B. Magnet C. Water D. Spoon a 13. Which of the following uses evaporation as means of separating the components of the given mixture? A. Oil and water B. Pebbles and sand C. Sand and gravel D. Salt and water



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