Elements, Compounds & Mixtures Worksheet



Classify each of the following as elements (E), compounds (C) or Mixtures (M). Write the letter X if it is none of these._E_Diamond(C)_C_Sugar (C6H12O6) _M_Milk_M_Air_C_Sulfuric Acid (H2SO4)_M_Gasoline_E_Krypton (K)_E_Bismuth (Bi)_E_Uranium (U)_C_Water (H2O)_C_Alcohol (CH3OH)_M_Pail of Garbage C_Ammonia (NH3)_C_Salt (NaCl)_X_Energy _M_Wood_M_Bronze _M_Ink_C_Dry Ice (CO2)_C_Baking Soda (NaHCO3)_E_Titanium (Ti)_E_Iron (Fe)_M_Popcorn_E_Gold (Au)_X_Electricity _M_A dog _M_Concrete Match each diagram with its correct description. Diagrams will be used once.4741545153670003547110153670002352675153670001194435153670003619515367000495871578740005501640787400041624257874000256984578740001954530787400086868078740004343407874000325755787400021717078740005067300117475004162425317500380047531750028232101174750019545301174750019545303175001664970317500155638531750014478003175008686803175008686801174750068770534607500579120346075004705353460750010858523177500108585346075001085851174750054654451568450049949101568450038004751568450036918901568450030403801568450013392151568450013392154254500401764595885002533650958850013392159588500A B C D E_C_ Pure Element – only one type of atom present._E_ Mixture of two elements – two types of uncombined atoms present._B_ Pure compound – only one type of compound present._A_ Mixture of two compounds – two types of compounds present._D_ Mixture of a compound and an element. Read each description and determine whether it is a pure substance or mixture. Then further classify the matter (element, compound, homogeneous mixture, heterogeneous mixture)DescriptionPure Substanceor Mixture?Classification?1. Chocolate syrup is added to milk and stirredMixtureHomogenous mixture (solution)2. Copper metal (used to make wires)Pure substanceElement3. Sand is added to waterMixtureHeterogeneous Mixture4.Distilled waterPure substanceCompound5. Tap waterMixtureHeterogeneous mixture6. DiamondPure substanceElement7. Table sugarPure substanceCompound8. Table sugar added to a cup of coffee and stirredMixtureHomogeneous mixture (solution)9. Kool-aid is added to waterMixtureHomogeneous mixture (solution)10. Coca-colaMixtureHomogeneous mixture11. Helium gas (used to inflate a balloon)Pure substanceElement12. Mercury metal (used in old thermometers)Pure substanceElement13. Hydrogen gas (an explosive gas)Pure substanceElement14. Trail mix (peanuts, pretzels and m&m's)MixtureHeterogeneous mixture15. The air we breatheMixtureHomogeneous mixture (solution) ................
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