Chemistry Ch.2 Review For Test: Question Preview (ID: 20444)


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What is a process in which substances are changed into different substances?
a) physical change b) chemical reaction c) homogeneous mixture d) compound
What type of mixture has a uniform composition?
a) element b) heterogeneous c) homogenous d) compound
What is the amount of matter an object contains?
a) mass b) volume c) density d) none of the above
This is an example of an extensive property.
a) temperature b) pressure c) mass d) hardness
A vapor is which state of matter?
a) gas b) liquid c) solid d) none of the above
Which of the following does NOT involve a physical change?
a) mixing b) melting c) grinding d) decomposing
Which of the following is an example of a physical change?
a) evaporation b) corrosion c) explosion d) none of the above
Which of the following is an example of a homogeneous mixture?
a) beef stew b) salt water c) sand and water d) soil
Which state of matter is characterized by having an indefinite shape, but a definite volume?
a) solid b) liquid c) gas d) none of the above
Which of the following CANNOT be classified as a substance?
a) table salt b) nitrogen c) gold d) air
Which state of matter is characterized by having a definite shape and a definite volume?
a) gas b) liquid c) solid d) none of the above
Which of the following is a heterogenous mixture?
a) oil and vinegar b) vinegar in water c) milk d) air
Separating a solid from a liquid by evaporating the liquid is called _________.
a) filtration b) condensation c) solution d) distillation
Which of the following items is NOT a compound?
a) baking soda b) salad dressing c) sucrose (sugar) d) table salt
Which state of matter expands when heated and is easy to compress?
a) solid b) liquid c) gas d) none of the above
What is a substance that cannot be changed into simpler substances by chemical means?
a) mixture b) compound c) element d) none of the above
What must occur for a change to be a chemical reaction?
a) There must be a change in chemical properties. b) There must be a change in physical properties. c) The change must involve a change in mass. d) The change must involve a change in volume.
Which of the following is a chemical property?
a) color b) freezing point c) hardness d) ability to react with oxygen
What do chemical symbols and formulas represent?
a) elements and compounds b) atoms and mixtures c) compounds and mixtures d) elements and ions
Which of the following materials is a substance?
a) air b) gasoline c) stainless steel d) iron
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