Elements, Compounds, Mixtures
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| 1. A solution is a mixture that appears to be a single substance. In solutions the solute is the substance that is dissolved. What is the solvent in scenario A:Sugar is soluble in hot tea. | A.The hot tea is the solvent because sugar the sugar is the solute.
B.The sugar is the solvent because hot tea is the solute.
C.The hot tea and sugar are solvents.
D.Not given enough information.
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| 2. Martha pours milk into a bowl of cereal. Next, she pours sugar into the bowl. After a few seconds she notices that she cannot see the sugar that was added into the milk. However she still sees the cereal. What is the type of mixture shown above? | A.The mixture above is a heterogeneous mixture because it cannot be homogeneous.
B.The mixture above is homogeneous because it cannot be heterogeneous.
C.The mixture is homogeneous.
D.The mixture is heterogeneous because components can be seen.
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| 3. What are five examples of pure substances? | A.lipton tea,cold coffee,vinegar,cooking oil,milk
B.iron,silver,sugar salt,oxygen
C. silver,cookies,water,candy,cereal
D.orange juice,milk,pecans,cereal,watermelon
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| 4. How are pure substances and mixtures similar if pure substances are usually pure elements? | A.Pure substances; like mixtures, involve elements, such as oxygen or arsenic.
B.Pure substances are mixtures that were already mixed.
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| 5. A compound of iron(Fe) and sulfur(S) is ironsulphide(FeS). A compound of potassium(K) and bromine(Br) is potassiumbromide(KBr). What are the pure substances in these compounds? | A.iron(Fe), Sulfur(S), Helium, Sodium
B.Solid, Liquid,Gas
C.Iron(Fe), Sulfur(S), Potassium(K), Bromine(Br)
D.polcadots
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| 6. If sodium(Na)and chlorine(Cl)is combined, What would be the new compound? | A. sodiumchloride
B. sodiumchlorine
C. chlorinesodium
D. sodium and chlorine
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| 7. How are elements, compounds, and mixtures related? | A. Elements are mixed to make compounds and mixtures, such as sodium and chlorine.
B. Elements are mixed to make only mixtures.
C. Compounds come from mixtures.
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| 8. A substance is analyzed in a laboratory, and when viewed under a microscope, it is revealed that it contains only one kind of atom. Is this substance an element, compound or mixture? | A. element
B. compound
C. Mixtures
D. Both elements and compounds
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| 9. Maria was given a block of pure 24-carot gold from her boyfriend Max. Did she receive an element, compound, or mixture. | A. element
B. compound
C. mixture
D. not enough information given
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| 10. We breathe air, which is an element on the periodic table. Which element below will make the compound Oxgenbromide(OBr)? | A. Oxygen(O) and Boron(Br)
B. Cadmium(Cd) and Bromine(Br)
C. Mercury(Hg) and Osmium(Os)
D. Oxygen(O) and Bromine(Br)
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| 11. All mixtures can be separated into two categories based on the question " Does the sample have composition?" | A. Heterogeneous Mixtures and Homogeneous Mixtures
B. Homogeneous Mixtures and Happy Mixtures
C. Elements and Compounds
D. Physical and Chemical Changes
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| 12. All homogeneous mixtures can be separated into two categories based upon: | A. Solutions
B. Mixtures
C. Pure substances
D. Compounds
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| 13. Is table salt, salt water, an iron pure substances or mixtures? | A. pure substances
B. Mixture
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| 14. Pure substances are parts of mixtures. Unpure substances are either mixtures or compounds. Would putting two substances together make a mixture? | A.Yes, because putting two or more make pure substances together makes a mixture.
B.Yes, because putting one or more elements together makes only compounds.
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