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- 1. Multiple Choice
One of the essential minerals in the human body is salt. How much salt (NaCl) is in the average adult human body?1 kilogram500 grams250 grams10 grams - 2. Multiple ChoiceIf you fill a glass to the brim with ice water and the ice melts, what will happen?The glass will over flow as the ice turns to water.The level of water in the glass will remain unchanged as the ice melts.The water level will drop slightly as the ice meltsI'll never find out because I'll drink the water or walk away before anything happens.
- 3. Multiple ChoiceIf you fill a glass to the brim with ice water and the ice melts, what will happen?The glass will over flow as the ice turns to water.The level of water in the glass will remain unchanged as the ice melts.The water level will drop slightly as the ice meltsI'll never find out because I'll drink the water or walk away before anything happens.
- 4. Multiple ChoiceThe symbol Sb stands for stibnum or stibnite. What is the modern name of this element?ArsenicAntimonySeaborgiumTin
- 5. Multiple ChoiceWater-based liquids can be described as acidic, neutral, or basic, with respect to pH. Which of these describes milk?Slightly AcidicNeutralMilk does not have a pHStrong Acid
- 6. Multiple ChoiceDNA codes for proteins, which are the building blocks of organisms. What is the most abundant protein in the human body?TubulinAlbuminCollagenKeratin
- 7. Multiple ChoiceNoble gases are inert because they have completed outer electron shells. Which of these elements isn't a noble gas?HeliumArgonChlorineKrypton
- 8. Multiple ChoiceWhat is the most common isotope of hydrogen?ProtiumDeuteriumTritumHydrogen only has one isotope!
- 9. Multiple ChoiceYou can't live without water! What is its chemical formula?H2h20O2H2O2
- 10. Multiple ChoiceWho is credited with the invention of the modern periodic table?NobelMendeleevLavoisierMendel
- 11. Multiple ChoiceWhich of these elements is a nonmetal?SulfurManganeseAluminumBeryllium
- 12. Multiple ChoiceOrganic chemistry is the study of the compounds that make up living organisms. All organic molecules contain:Carbon OnlyCarbon and HydrogenCarbon and NitrogenCarbon, Hydrogen, and Oxygen
- 13. Multiple ChoiceThree of the most common states of matter are solids, liquids, and gases. A liquid has:a defined volume, but not a defined shapea definite shape, but no defined volumea definite volume and shapeno defined volume or shape
- 14. Multiple ChoiceYou can't live without iron. Where in the body is most of the iron located?your brainyour bonesyour skinyour blood
- 15. Multiple ChoiceA mole contains Avogadro's number of items. What is Avogadro's number?60236.023 x 10^236.02 x 10^-233 x 10^8
- 16. Multiple ChoiceWhat do you call an atom that has more protons than electrons?a moleculean anionan isotopea cation
- 17. Multiple ChoiceAll of the following are amino acids except:TryptophanTyrosineLeucineAdenine
- 18. Multiple ChoiceA drop of food coloring spreading out in a cup of water is an example of which transport process?DiffusionVapor PressureOsmosisEffusion
- 19. Multiple ChoiceIn a solution of saltwater (a saline solution), salt is the:SoluteSolSolventColloid
- 20. Multiple ChoiceAll of the following elements are liquids around room temperature except which one?GalliumMagnesiumMercuryBromine
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