MIDTERM EXAM in GENERAL CHEMISTRY

Name: __________________________Date: __________Year Level/Course :________________Score: __________G O O D L U C K A N D E Y E S O N Y O U R O W N P A P E R!Test I IdentificationObjective : To assess the students ability to analyze the exam based on the previous lesson.Direction: Fill out the space provided before each number with the correct answer. : 2 points eachMl. L. : 90 %

_________________1. A Greek word meaning The Black Art._________________2. He developed the 1st pharmacopeia._________________3. Father of Modern Chemistry._________________4. branch of science that deals with the study of matter._________________5. The earliest metals during the Earliest time to 300 B.C._________________6. _________________7._________________8._________________9. _________________10. Famous names during the earliest time to 300 B.C._________________11._________________12._________________13._________________14. The greatest Chemist who invented filtration & sublimation._________________15. Started the making of drugs & medicines in the laboratory._________________16. Wrote a book entitled The Skeptical Chemist._________________17. The Father of Modern periodic Table.----------------------------18. Branch of chemistry that deals with the processes of living organisms._________________19. Branch of chemistry that deals with the use of chemical techniques in the study of nuclear reactions._________________20. Branch of chemistry that studies the chemical effect of high energy radiation on substances.

Test II Multiple ChoiceObjective : To develop students critical thinking ability in the selection to the right answer,Direction: Encircle the letter of the correct answer. : 1 point eachM.L. : 90%

1. Made up of only one type of atom:a. compoundsc. elementsb. mixturesd. pure substances2. These are not uniform in composition & contain two or more different substances:a. compoundsc. elementsb. mixturesd. pure substances3. Properties in chemistry refer to qualities or distinguishing characteristics of a substance used in its identification & description.a. Trueb. false4. This can be observed & measured without changing the composition of the matter.a. Chemical propertiesc. Physical propertiesb. Intrinsic propertiesd. Extrinsic properties5. Examples of physical properties are the following EXCEPT:a. Colorc. hardnessb. Boilingd. water6. These are the tendencies of a substance to change or form another substance:a. Physical propertiesc. chemical propertiesb. Intrinsic propertiesd. Extrinsic7. Refers to the inherent characteristics of the substance & depend on the kind or quality of the material itself:a. Physical propertiesc. Chemical propertiesb. Intrinsic propertiesd. Extrinsic properties8. Examples of intrinsic properties are the following EXCEPT:a. Tastec. Colorb. Densityd. odor9. The following are examples of extrinsic properties EXCEPTa. Sizec. Shapeb. Massd. color10. Refers to the space that matter occupies:a. Massc. Volumeb. Weightd. Water11. It is the total number of molecules found in the body:a. Volumec. Massb. Inertiad. density12. /the following are the following are the general properties of matter EXCEPT:a. Volumec. massb. Inertiad. Water13. The total pull of gravity upon a give mass:a. Volumec. Weightb. Inertiad. Mass14. There are three chemical changes in matter:a. Trueb. false15. It result in the disappearance of substances & formation of new ones:a. Physical changec, Chemical changeb. Electrical changed. None of the above16. Examples of physical changes are the following EXCEPT:a. Melting of sugarc. Decayb. Evaporationd. powdering17. Examples of chemical changes are the following EXCEPT:a. Souringc. decayb. Evaporationd none of the above18. Condition of matter where the molecules are compact:a. Liquidc. Solidb. Gasd. Plasma19. Condition when the molecules are loose & less compact:a. Liquidc. Solidb. Gasd. Plasma20. The types of liquids are the following EXCEPT:a. Fluidsc. volatileb. Amorphousd. viscous21. Substance that flows freely:a. Fluidsc. Viscousb. Volatile d. Non-volatile22. Substances which are glutinous & less resistance to flow:a. Fluidsc. Viscousb. Volatiled. Non-volatile23. Easy to convert to gas or vapor:a. Fluidsc. Viscousb. Volatiled. Non- volatile24. The following are examples where plasma are to be found EXCEPT:a. Lightingc. fluorescentb. Sund. Gas25. The law of Conversion of Matter was formulated by:a. /Antoine Lavosierb. Robert Boylec. Robert Kochd. None of the above26. Joseph Proust formulated the:a. Law of Conversion of matterb. Law of Conversion of energyc. Law of Definite Composition or law of Definite Proportion27. Law of Multiple Proportion was started by:a. Antoine Lavosierb. John Daltonc. Joseph Proustd. Robert Koch28. There are 9 forms of energy:a. Trueb. false29. Energgy of motion:a. Kineticc. inertiab. Heat energyd. electrical energy30. Energy involved in doing work by mechanical appliance or machines:a. Mechanical energyc. Kinetic energyb. Heat energyd. Inertia

Test III Identify the following materials whether pure substance or a mixture. Write P for pure substance & M for mixture on the before each number. (10 points)_________1. Salt________6. Corn oil___________2. Water________7. Air without clouds___________3. Gold________8. Oxygen___________4. Halo-halo________9. Beach sand___________ 5. Salt solution________10. White vinegar