Name _________________________________ Date Period

Name ___________________________________________ Date ________________ Period __________ QUIZ: ATOMS AND MOLECULES Directions: Please put your answers directly on this quiz. For multiple choice questions, write the letter of your choice on the line provided. For other questiosns, please use the space provided to make your response. Read each item carefully, and make sure that your response addresses what is being asked in the question. Do not leave any questions blank. Relax, good luck, and enjoy! 0. Do you have to use a silencer if you shoot a mime? 1. If an atom has 24 protons and 24 neutrons and a charge of -2, how many electrons does it have? 2. A polar molecule is one which A. has bears living at the north end. B. has local positive and negative charges, but no overall charge. C. would combine quickly and easily with olive oil. D. never contains nitrogen. _________ For questions 3-6, look at the large periodic table that Mr. Syracuse is holding. 3. How many protons does molybdenum (Mb) have? 4. What is the atomic mass (to the nearest a.u.) of molybdenum? 5. Does helium (He) have a full valence shell of electrons? 6. How many more electrons would oxygen need to have a full valence shell? 7. Look at the reaction shown below. Describe what is happening. You may write, draw, or both. glucose glucose maltose

8. What kind of bonds involve a sharing of electrons between two atoms? A. Hydrogen B. Covalent C. Ionic D. James _________ 9. If two substances are physically but not chemically combined, they form a A. Solution B. Isotope C. Suspension D. Mixture _________ 10. If Jean-Baptiste Lamarck added some sugar to his tea, the sugar is the ______ and the tea is the ______. A. atom; ion B. solvent; solute C. solute; solvent D. atom; molecule _________ 11. Why is it important that water floats when it freezes? 12. HCL, hydrochloric acid, is, as its name suggests, an acid. What would happen when you put HCL into solution in water? You may write, draw, or both. 13. Why is it important that the pH of your blood is maintained at about 7.4 by buffers? 14. What is being demonstrated in the picture below? 15. A trisaccharide such as raffinose contains how many monosaccharides? Draw raffinose below, using the as the symbol for a monosaccharide. F K H H O

Name _________________________________ Date Period

Name _________________________________ Date Period

Presentation Transcript

Name Date Period

Name: ______________________ Date: _ Period: ___________

Name ______________________________ Date _ Period __

Name ___________________________________ Date Period _

Name __________________________________ Date _ Period __

Name ____________________________ Date Period _

Name _______________________________ Date _ Period _

Name ____________________________________ Date Period _

Name Date Period

Name ____________________________________ Date Period _

Name _________________________________ Date Period

Name ______________________________ Date _ Period ______

NAME ______________________ DATE PERIOD _

Name: ______________ Period: Date:

Name _____________________ Date Period

Name:_____________ Date: Period:

Name ____________________________________ Date Period _

Name _________________ Date _ Period

Name ________________________________ Date Period _

Name ____________________________ Date Period _

Name:_ Date: Period:__

Name: Date: Period:

Name ___________________________________________ Date ________________ Period __________

Name ___________________________________________ Date ________________ Period __________

Presentation Transcript

Name Date Period

Name: ____________________________________ Date: ___________________________ Period: _______________________

Name ________________________________________ Date ___________________ Period __________

Name ___________________________________________ Date ________________ Period _________

Name __________________________________________ Date _________________ Period __________

Name ________________________________________ Date __________________ Period ___________

Name _________________________________________ Date ___________________ Period _________

Name ____________________________________________ Date ________________ Period _________

Name Date Period

Name ____________________________________________ Date ________________ Period _________

Name ___________________________________________ Date __________________ Period ________

Name ______________________________________ Date _________________ Period ______________

NAME ______________________________ DATE ________________ PERIOD _________

Name: __________________________ Period: __________ Date: __________

Name ___________________________________ Date ____________________ Period ______________

Name:_______________________ Date: ________________ Period: __________

Name ____________________________________________ Date ________________ Period _________

Name _____________________ Date _________ Period ____

Name __________________________________________ Date ________________ Period ___________

Name ______________________________________ Date ____________________ Period ___________

Name:_________________ Date:__________________ Period:________________

Name: Date: Period:

Name _________________________________ Date Period

Name _________________________________ Date Period

Name: ______________________ Date: _ Period: ___________

Name ______________________________ Date _ Period __

Name ___________________________________ Date Period _

Name __________________________________ Date _ Period __

Name ____________________________ Date Period _

Name _______________________________ Date _ Period _

Name ____________________________________ Date Period _

Name ____________________________________ Date Period _

Name _________________________________ Date Period

Name ______________________________ Date _ Period ______

NAME ______________________ DATE PERIOD _

Name: ______________ Period: Date:

Name _____________________ Date Period

Name:_____________ Date: Period:

Name ____________________________________ Date Period _

Name _________________ Date _ Period

Name ________________________________ Date Period _

Name ____________________________ Date Period _

Name:_ Date: Period:__