Exam 1: CHEM 120/ CHEM120 (NEW 2026/ 2027 Update) Introduction to General, Organic, and Biological Chemistry with Lab Review| Questions & Answers | Grade A| 100% Correct (Verified Solutions)-Chamberlain

Examl 1:l CHEMl 120/l CHEM120l (NEWl
2026/l 2027l Update)l Introductionl tol
General,l Organic,l andl Biologicall
Chemistryl withl Labl Review|l Questionsl &l
Answersl |l Gradel A|l 100%l Correctl
(Verifiedl Solutions)-Chamberlain

QUESTION
Whichl ofl thel followingl isl anl examplel ofl al chemicall change?

saltl dissolvingl intol water
mixingl sandl andl water
waterl boiling
al substancel reactingl explosivelyl whenl placedl inl water


Answer:
al substancel reactingl explosivelyl whenl placedl inl water




QUESTION
Elementl Ml reactsl withl fluorinel tol forml anl ionicl compoundl withl thel formulal MF3.l Thel
M-l ionl hasl 21l electrons.l Elementl Ml isl _______________

Cr
Sc
Al
Mn
Fe

,Answer:
Cr




QUESTION
Thel atomicl massl ofl anl element

isl equall tol thel atomicl number.
isl thel weightedl averagel ofl thel massesl ofl thel naturallyl occurringl isotopes.
isl alwaysl anl integer.
isl equall tol itsl massl number.



Answer:
isl thel weightedl averagel ofl thel massesl ofl thel naturallyl occurringl isotopes.




QUESTION
Whichl onel ofl thel followingl isl thel highestl temperature?

38l °C
302l K
96l °F
nonel ofl thel above



Answer:
38l °C




QUESTION
Whichl elementl hasl twenty-fourl electrons?

Cr+2
Fe+2

, Ti+2
Cu+2



Answer:
Fe+2




QUESTION
Thel formulal forl zincl phosphatel isl Zn3(PO4)2.l Whatl isl thel formulal forl cadmiuml
arsenate?

Cd3(AsO4)2
Cd2(AsO4)4
Cd4(AsO2)3
Cd3(AsO3)4
Cd2(AsO4)3



Answer:
Cd3(AsO4)2




QUESTION
hypothesis


Answer:
al testablel explanation




QUESTION
independentl variable