11. What does it indicate when a sugar is heated in a test tube until it is completely changed into a black mass and droplets of water? A. compound B. Element C. Mixture D. Solution 12. What substance is made by mixing two elements without being chemically combined? A. compound B. element C. mixture D. solution 13. What is the best way to use in separating iron parts from a mixture? A. Filter paper B. Magnet C. Water D. Spoon 14. Which of the following uses evaporation as a means of separating the components of the given mixture? A. Iron fillings and sand B. Pebbles and water C. Sand and gravel D. Sugar and water​