Medway High School Name_________________ Chemistry Chemistry Practice TEST Multiple Choice: 16) A Law is: a) an observation recorded from an experiment. b) a proposed explanation for what is observed. c) a concise statement that summarizes the results of a broad variety of experiments d) a thoroughly tested model. 17) Which of the following is a physical property? a) spoiling food b) explosion c) dissolving salt d) all of these 19) A hypothesis comes from? a) observation b) experimentation c) theory d) law 20) In which of the following is chemistry or chemicals involved? a) matter b) energy c) physical properties d) chemical properties e) all of these 21) Fools gold (pyrite) is similar in appearance to gold, and fooled gold miners in the late1800s as real gold. Clever miners, at mining sites, tested fools gold from the real thing by hitting it with a hammer. What type of property was tested? a) chemical property b) phase c) physical property d) theory 22) Dissolving is? a) physical b) mixture c) homogeneous d) all of these 24) Identify which is not a property of a solid? a) definite shape b) incompressible c) flows d) all of these c) flows d) all of these 25) Identify the properties of a liquid? a) indefinite shape b) incompressible 26) Common Table Salt is? a) an element b) a compound c) a heterogeneous mixture d) a homogeneous mixture True-False: Classify each of the following as true or false. _T__27) Mixtures can be made up with two or more substances. _F__28) Dissolving sugar is a chemical process. _F__29) Density is a chemical property of a substance. _F__30) Melting point is a chemical property of a substance. __F_31) Flammability is a physical property of a substance. _T__32) Experiments offer new observations that lead to a better hypothesis _F__33) Qualitative involve numbers and amounts _F__34) Baking a potato is chemical. Mr. Hoek 1 of 2 Practice Test September, 2012 Medway High School Name_________________ Chemistry Classify: Circle the correct property of the element Copper as chemical or physical properties. 41) melting point chemical physical 42) makes bubbles when added to acid chemical physical 42) color chemical physical 44) tarnishes chemical physical 45) flexibility chemical physical Circle the correct type of measurement data as Qualitative or Quantitative. 46) melting point Qualitative Quantitative 47) density Qualitative Quantitative 48) mass Qualitative Quantitative 49) flexibility Qualitative Quantitative 50) color Qualitative Quantitative Circle the correct type of mixture data as Homogeneous or Heterogeneous. 51) Spaghetti & meatballs Homogeneous Heterogeneous 52) Cup of tea Homogeneous Heterogeneous 53) Welch’s Grape Juice Homogeneous Heterogeneous 54) Sand in water Homogeneous Heterogeneous 55) Seawater Homogeneous Heterogeneous Circle the correct type of substance as Element, Compound or Mixture. (Hint use periodic table) 56) Table Salt Element Compound Mixture 57) Penny Element Compound Mixture 58) Granite Element Compound Mixture 59) Coffee Element Compound Mixture 60) Magnesium Element Compound Mixture Mr. Hoek 2 of 2 Practice Test September, 2012