Elements, Compounds and Mixtures
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1 Elements, Compounds and Mixtures
2 What is a pure substance made of two or more elements that are chemically combined called? A. element B. compound C. mixture D. solution
3 What is a pure substance made of two or more elements that are chemically combined called? A. element B. compound C. mixture D. solution
4 If a spoonful of salt is mixed in a glass of water, what is the water called? A. solute B. solution C. solvent D. element
5 If a spoonful of salt is mixed in a glass of water, what is the water called? A. solute B. solution C. solvent D. element
6 What is a solid solution of metal or nonmetal dissolved in a metal called? A. suspension B. alloy C. colloid D. compound
7 What is a solid solution of metal or nonmetal dissolved in a metal called? A. suspension B. alloy C. colloid D. compound
8 A colloid has properties of both suspensions and A. solutions B. solvents C. solutes D. nonmetals
9 A colloid has properties of both suspensions and A. solutions B. solvents C. solutes D. nonmetals
10 What is formed when particles of two or more substances are distributed evenly among each other? A. compound B. suspension C. solution D. elements
11 What is formed when particles of two or more substances are distributed evenly among each other? A. compound B. suspension C. solution D. elements
12 The flammability of a substance is A. a chemical property B. related to the density C. a physical property D. changeable
13 The flammability of a substance is A. a chemical property B. related to the density C. a physical property D. changeable
14 How is a compound different from a mixture? A. Compounds have two or more components. B. Each substance in a compound loses its characteristic properties. C. Compounds are commonly found in nature. D. Solids, liquids and gases can form compounds.
15 How is a compound different from a mixture? A. Compounds have two or more components. B. Each substance in a compound loses its characteristic properties. C. Compounds are commonly found in nature. D. Solids, liquids and gases can form compounds.
16 Identify each type of mixture. Which mixture can be separated by using a filter? A.Colloid B.Suspension C.Solution
17 Suspensions can be separated by a filter.
18 The particles in both a solution and a colloid A. cannot scatter light. B. can settle out. C. are soluble. D. can pass through a fine filter.
19 The particles in both a solution and a colloid A. cannot scatter light. B. can settle out. C. are soluble. D. can pass through a fine filter.
20 Which of the following is NOT a reason that compounds are considered pure substances? A. They are composed of only one type of particle. B. The particles are made of atoms of two or more elements that are chemically combined. C. Different samples of any compound have the same element in the same proportion. D. They can be separated by physical methods.
21 Which of the following is NOT a reason that compounds are considered pure substances? A. They are composed of only one type of particle. B. The particles are made of atoms of two or more elements that are chemically combined. C. Different samples of any compound have the same element in the same proportion. D. They can be separated by physical methods.
22 How are metalloids similar to metals? A. They have some properties of nonmetals. B. Some are shiny, while others are dull. C. They are somewhat malleable and ductile. D. Some are good conductors of electric current.
23 How are metalloids similar to metals? A. They have some properties of nonmetals. B. Some are shiny, while others are dull. C. They are somewhat malleable and ductile. D. Some are good conductors of electric current.
24 How could a sugar cube be dissolved more quickly in water? A. Cool the water. B. Crush the sugar cube. C. Let the cube sit in the water. D. Add more water.
25 How could a sugar cube be dissolved more quickly in water? A. Cool the water. B. Crush the sugar cube. C. Let the cube sit in the water. D. Add more water.
26 An aluminum pie plate A. alloy B. element C. solute D. mixture of solids
27 An aluminum pie plate A. alloy B. element C. solute D. mixture of solids
28 A milk shake A. solute B. alloy C. mixture of solids D. suspension
29 A milk shake A. solute B. alloy C. mixture of solids D. suspension
30 Calcium carbonate A. solute B. alloy C. compound D. element
31 Calcium carbonate A. solute B. alloy C. compound D. element
32 Potting soil A. mixture of solids B. compound C. suspension D. alloy
33 Potting soil A. mixture of solids B. compound C. suspension D. alloy
34 Instant coffee that is placed in hot water A. alloy B. solute C. compound D. mixture of solids
35 Instant coffee that is placed in hot water A. alloy B. solute C. compound D. mixture of solids
36 A steel crowbar A. alloy B. element C. suspension D. compound
37 A steel crowbar A. alloy B. element C. suspension D. compound
38 Also known as table salt A. Carbon dioxide B. Sulfur C. Sodium chloride
39 Also known as table salt A. Carbon dioxide B. Sulfur C. Sodium chloride
40 Used by plants during photosynthesis A. Carbon dioxide B. Sulfur C. Sodium chloride
41 Used by plants during photosynthesis A. Carbon dioxide B. Sulfur C. Sodium chloride
42 Is a nonmetal A. Carbon dioxide B. Sulfur C. Sodium chloride
43 Is a nonmetal A. Carbon dioxide B. Sulfur C. Sodium chloride
44 Identify each group. A. Compound B. Mixture C. Element
45
46 Elements, Compounds, and Mixtures
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