Classifying and Modeling Matter
Quiz by Jennipher Crowley
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20 questions
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- Q1What type of mixture has an even composition throughout?CompoundElementHeterogeneous mixtureHomogeneous mixture30s
- Q2Which of the following is a characteristic property of metals?Brittle in solid formGood conductor of heat and electricityLow densityDull appearance30s
- Q3Which of the following best defines a compound?A mixture that has a variable compositionA substance formed when two or more elements are chemically combinedA single element that cannot be broken downA combination of different types of atoms that do not react30s
- Q4Which of the following is an example of a heterogeneous mixture?AirSaladVinegarSugar water30s
- Q5What is the simplest form of matter that cannot be broken down into simpler substances?MixtureCompoundElementMolecule30s
- Q6Which of the following statements about metalloids is true?They have properties of both metals and nonmetalsThey have a high density onlyThey are always solid at room temperatureThey are only good conductors of electricity30s
- Q7Which type of mixture has a uneven composition and can be easily separated?ElementCompoundHomogeneous mixtureHeterogeneous mixture30s
- Q8Which of the following is a property commonly associated with nonmetals?High densityPoor conductor of heat and electricityShiny appearanceMalleable30s
- Q9What is the main difference between a pure substance and a mixture?A pure substance consists of only one state of matter, while a mixture can consist of multiple states.A pure substance has a constant composition, while a mixture does not.A pure substance is always solid, while a mixture can be liquid or gas.A pure substance can be easily separated, while a mixture cannot.30s
- Q10Which of the following describes a molecule?A combination of different elements that are not chemically combinedA group of two or more atoms bonded togetherThe simplest form of a pure substanceA substance made of only one type of atom30s
- Q11Which of the following is a property of metals?Gaseous at room temperaturePoor conductors of heatGood conductors of electricityBrittle and dull30s
- Q12What is a homogeneous mixture?A mixture that contains visibly different substancesA mixture made only of metalsA mixture that can be easily separated by physical meansA mixture that has the same composition throughout30s
- Q13Which of the following is an example of a pure substance?AirOrange juiceWater (H₂O)Sand30s
- Q14Which of the following best describes a heterogeneous mixture?A mixture that is uniform in compositionA mixture that cannot be separated physicallyA mixture that has visibly different substances or phasesA mixture that contains only one type of element30s
- Q15What defines an element?A combination of two or more substancesA mixture that can be separated by physical meansA substance that cannot be broken down into simpler substancesA solution that is uniform throughout30s