ACTIVITY 2 8 polnts) Directions: Read each statement carefully. Circle the letter of this corresponds to your answer 1. Which of the following statements is NOT true about mixtures? A. Homogenous material is always a mixture C. Mocture of water and salt can have verying properties B. Al solutions are homogenous mixtures D. A mixture is made when elements and compounds are med 2. Which of the following describes a heterogeneous mixture? A clear in appearance B. uniform in appearance C. has one observable phase D. Particies can be seen at the bottom 3. Dry air consists of about 78% nitrogen, 21% oxygen, 1% water vapor with traces of Treces of inert gues. What kind of substance is dry air? A Compound B. Homogeneous Moxture C. Element D. Heterogeneous Mixture 4. Which of the following properties identifies a pure substance? A vinegar and salt B. water and four C. milk and sugar D. water and on 5. Seawater is a mixture mainly composed of sodium chloride (table salt) dissolved in water. Which of the following processes is best to use in recovering the salt? A. Sublimation B. Distillation C. Fitration D. Evaporation 6. Which method can be used to separats iron fillings from mixture of salt, sulfur and iron filings? A Filtration B. Use of Magnet C. Sedimentation D. Fration 7. Crude Oil is a mixture of different substances which can be separated by fractional distillation. Which among these properties are considered in the distillation process? A. melting point B. boiling point C. density D. freezing point & The following statements are the characteristics of homogenous mixtures EXCEPT_ A. Al solutions are examples of a homogeneous mature. C. The particles in such a case are less than one nanometer B. You can differentiate the boundaries of particles D. Alloys are examples of a solution

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