1) What is the chemical name for the symbol of "Pr" in the Periodic Table of Elements? a) Phosphorus b) Protactinium c) Praseodymium d) Palladium 2) Are alloys a Homogeneous Mixture or a Heterogeneous? a) Heterogenous b) Homogenous  3) When two or more substances mix with each other without participating in a chemical change, the resulting substance is called a? a) Pure Substances  b) Mixtures c) Molecules d) Compounds 4) When oil and water are mixed, two separate layers form. Each layer is called a(n) ? a) Mixure b) Substance c) Element d) Phase 5) Which mixture possess different properties and compositions in various parts? a) Homogenous Mixture b) Heterogenous Mixture c) Element d) Compound 6) The type of mixture in which the components mixed are uniformly distributed throughout the mixture is called what? a) Homogenous Mixture b) Heterogenous Mixture c) Compound d) Matter 7) With an increase in the amount of zinc, electrical conductivity of copper a) Increases b) Decreases c) Remains Constant d) Both A and B 8) Which of the following does this diagram represent? a) Molecule b) Compound c) Liquid d) Heterogenous Mixture 9) Sugar dissolves completely in water to form a solution. This solution is a _____. a) Heterogenous Compound b) Homogenous Compound c) Heterogenous Mixture d) Homogenous Mixture 10) A tossed salad is considered to be a ? a) Heterogenous Mixture b) Substance c) Phase d) Homogenous Mixture 11) Blood is considered as a(an)? a) Element b) Homogenous Mixture c) Heterogenous Mixture d) Solution 12) What does SPD mean? a) Spontaneous Projectory Diplomacy b) Spontaneous Performance Dedication c) Sharing Possible Details d) Sharing Possible Details 13) What does SFK mean? a) Sharing Formation within Kakistocracy b) Spontaneous Fiber Kakistocracy c) Sectioned Formation K d) Spontaneous Fibrinogenolysistic Kakistocracy 14) Which of the following is NOT true about mixtures? a) It can be classified into 2 kinds b) It is made up of more than 1 types of atoms c) It is a class of matter d) Made up from Molecules 15) Is a solution considered as a Homogeneous Mixture? a) Yes b) No c) Maybe, if experimented correctly d) Mostly not, due to chemical combinations 16) "One characteristic of mixtures is that they can be separated into their components." True or False? a) True b) False 17) "In homogeneous mixtures, the individual components are uniformly distributed throughout the mass and are indistinguishable." a) True b) False 18) "The components of pure substances sizes are atomic/molecular level." a) True b) False 19) "In a mixture, every component keeps up its own chemical identity." a) True b) False 20) "Furthermore, simple mechanical methods are able to separate distinct components of air." a) True b) False

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