Picacho McGregor School 1st Trimester Exam Chemistry - 9th Grade PDF
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Picacho McGregor School
2023
Picacho McGregor School
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Summary
This is the first trimester chemistry exam for 9th grade at Picacho McGregor School, in 2023. It includes multiple choice questions, true or false questions, fill in the blank questions and open-ended questions on topics such as lab rules, lab materials, and different chemical processes like filtration, crystallization, evaporation, and decantation.
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Picacho McGregorSchool Schoolyear2023–2024 1STTRIMESTRALEXAMCHEMISTRY–9THGRADE T eacher:___ISRAELDAVIDTRINIDADGARCIA_____ S ubject:__CHEMIS...
Picacho McGregorSchool Schoolyear2023–2024 1STTRIMESTRALEXAMCHEMISTRY–9THGRADE T eacher:___ISRAELDAVIDTRINIDADGARCIA_____ S ubject:__CHEMISTRY____ Fecha:_________________________ Name:_____________________________________________ G roup:_________ Marks:____/___total Examgrade:_____ LABRULES. LABMATERIALSANDAPPARATUS .MultipleChoice 1 .TrueorFalse 6 Whatshouldyoubringwithyouwhen APetridishisusedforgrowingculturesof enteringthelaboratory? microorganisms.______ a)Notebook,pencilcase,andchromebook b)Backpack,lunchbag,andlabcoat .FillintheBlank 7 c)Smartphone,headphones,andfood The__________isusedtomixorstirliquids d)Noneoftheabove andisoftenmagnetic. .TrueorFalse 2 .OpenQuestion 8 Itismandatorytousealabcoatandpants Howdoesaburetdifferfromagraduated beforeenteringthelaboratory._______ pipetteintermsofusage? .FillintheBlank 3 .MultipleChoice 9 Beforeenteringthelaboratory,itisprohibited Whichitemiscommonlyusedtoprotectthe tobring__________. bottomofabeakerorflaskwhenheating? a)Ironring .OpenQuestion 4 b)Wiremeshgauze Whyisitimportanttokeeptheinfrastructure, c)Watchglass materials,andapparatusingoodcondition? d)Spatula .MultipleChoice 5 0.TrueorFalse 1 Whichofthefollowingistrueregarding Amortarandpestleareusedtogethertogrind smartphonesandheadphonesinthe andmixsolidsubstances.______ laboratory? a)Theyareallowedforeveryone b)Onlyteamleaderscanusethem c)Theyareprohibited d)Theycanbeusedduringexperiments ILTRATIONQUIZ F Generalinstructions Read the questions and answer correctly, make sure to deliver the quiz in proper conditionsandclean.Itisnotallowedtotalkorchecknotesduringthequiz. I. Answerthefollowingquestionsusingyourownwords. 1. WhatistheprincipleofFiltration? 2. Thenamegiventotheliquidthatpassesthroughthefilter: 3. Namethe3typesoffilters: 4. Useyourownwordstodescribe“septum”or“filtermedium”: 5. Name3hazardstatementsforAmmoniumhydroxide: 6. Name3materialsusedinfiltermedia: 7. Name1materialusedinseptums: RYSTALLIZATIONQUIZ C Generalinstructions Read the questions and answer correctly, make sure to deliver the quiz in proper conditionsandclean.Itisnotallowedtotalkorchecknotesduringthequiz. MultipleChoiceQuestions C ○ )Marketing 1. Whatiscrystallization? ○ D)Shipping ○ A)Aprocessofevaporation ○ B)Theformationofsolid Open-EndedQuestions crystalsfromasolutionormelt ○ C)Thebreakingdownofsolid 6. Describetheroleoftemperatureinthe materials rystallizationprocess.Howcanit c ○ D)Atypeofchemicalreaction affectthesizeandqualityofthe 2. Whichofthefollowingisafactor crystalsformed? thataffectscrystallization? . Listthreehazardstatementsfora 7 commoncrystallizationsubstance, ○ A)Pressure suchascoppersulfate,andexplain ○ B)Humidity whyeachstatementisimportant. ○ C)Color ○ D)Sound 3. Whattypeofnucleationoccurs spontaneouslyinahomogeneous environment? ○ A)Heterogeneousnucleation ○ B)Homogeneousnucleation ○ C)Primarynucleation ○ D)Secondarynucleation 4. Whichofthefollowingshapesis NOTcommonlyassociatedwith crystals? ○ A)Cubic ○ B)Hexagonal ○ C)Spherical ○ D)Tetragonal 5. Whatisoneapplicationof crystallizationinthe pharmaceuticalindustry? ○ A)Drugformulation ○ B)Packaging IEVINGQUIZ S Generalinstructions Read the questions and answer correctly, make sure to deliver the quiz in proper conditionsandclean.Itisnotallowedtotalkorchecknotesduringthequiz. I. A nswerthefollowingquestionsusingyourownwords. 1. Whatistheprincipleofsieving? 2. Name3sievingmethods: 3. Useyourownwordstodescribe“finesieving”,“tails”and“clogging”: 4. N ame 2 examples of properties which can beinfluencedbytheparticlesize distribution: 5. Name2applicationsofsieving: 6. Name2materialsusedinsievingframesandmeshes: VAPORATIONQUIZ E Generalinstructions Read the questions and answer correctly, make sure to deliver the quiz in proper conditionsandclean.Itisnotallowedtotalkorchecknotesduringthequiz. I. Answerthefollowingquestionsusingyourownwords. 1. Whatistheprincipleofevaporation? 2. Name2factorsthataffectevaporation: 3. Useyourownwordstodescribe“dewpoint”and“bubblepoint”: 4. Name3ofthemostimportantpropertiesofevaporatingliquids: 5. Name1typesofevaporators: 6. Name1exampleand1applicationofevaporation: ECANTATIONQUIZ D Generalinstructions Read the questions and answer correctly, make sure to deliver the quiz in proper conditionsandclean.Itisnotallowedtotalkorchecknotesduringthequiz. 1. Whatisdecantation? 2. Whatare2applicationsofdecantation? 3. Whatisloading? 4. What’sthedifferencebetweenmiscibleandimmisciblesolutions? 5. Name1substanceusedindecantationforloading: 6. Nameandexplain1limitationofdecantation? 7. Name2hazardstatementsforToluene:
