Partial preview of the text
Download Exam#2 - Chapters 4-6 pdf. and more Exams Elementary Analysis in PDF only on Docsity!
Dae? NO NOT WRITE ON THIS TESTI ; CHEMISTRY TEST ON WRITING AND BALANCING CHEMICAL EQUATIONS, TYPES OF CHEMICAL LEMS [LBéc és 2 nance FARES REACTIONS, AND MASS Mase | BP, : E 7 ART I: MULTIPLE CHOICE (2 points each) 1, Given the unbalanced equation: QUE) PO, + BaNQd2 > Ba(PO)2. + NHWNO; at is the coefficient in front of the NHNOs when the equation is completely batanced with the oO 6 by2 co) 3 4 substances combine to form a more complex gle replacement d) double Whi smallest whole number coefficients? 1 reaction where two or more 2, The type of chemical @® combination b) decomposition ¢) sin; substance is called displacement a) replace the Zn and form PbNO; 6) will not Ph + ZnNOj, the Pb will nd) precipitate out 3. Inthe reaction: and dissolve in solutio replace the Zn ¢) form PbNO; ‘ons will go to completion andcan form a)aprecipitate b) a gas 4, Double displacement reacti we e) none of the above c) water @ any of the abo ic chlorides and oxygen y break down into a) metalli oxides and When metallic hydroxides are heated, the: b) metallic oxides and carbon dioxide © metallic oxides and water d) nonmetallic water ---> SO», what is the total number of grams of oxygen 6. Given the reaction: 8S + OQ. - needed to react completely with Z moles of sulfur? 2)22 @ 32 ¢) 64 d)128 tC eee? SIC + CO, is correctly balanced using whole ofall the coefficients is a)6 @7 ©)8 4)9 + O02 — > 21,0, the total number of grams of O, needed to 3648 0) 61 Ay7S According: to the reaction: H, + Ch----~ > 2HCI, the production of 2.0 moles of HC] would require 70 grams ofCland a) 1.0g of H2 @2.0 gofH, c)3.0g of H, 4)4.0 g0f HR, 10. In the equation: CaCO, -----— > CaO + CO, itrepresents the process of; a) ueuisalization decompnsition c) combination d) synthesis + NO + HO iscompletely fficient of the nitric acid will be a) 8 b)2 c)6 @4 > 2KX + Ch, the halogen 7, When the equation: sid, number coefficients, the sum §. Given the reaction: 2l2 produce 54 grams of waier is a 11, When the equation: Cu + HNO; balanced using whole numbers, the coe! ction: 2KCL + Xy mene 12. In the single replacement rea represented by the letter X is @F b)Cl c}Br d)t represent! > NH; is completely balanced using smallest whole @65 b)7 3 412 13, When the equation: Hz + Ng weesesesessoee numbers, the sum of all the coefficients will be mation: H,; + Fe:Qy wees} Fe + HO is completely balanced using 14. When the eq cients of Hy wouldbe a)1 b)2 c)3 @4 emeallest whole numbers, the coeffi Scanned with CamScanner