scan0012 - Mixed Rain 19 Idflyktpe of compound(Ionic Acid...

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Unformatted text preview: Mixed Rain: 19. Idflyktpe of compound (Ionic, Acid, Molecular) and write the formula. a. sfiioon dioxide m OULCVLGF b carbontetraiodide m 6 ULLU are” c. copper (El) sulfide l mm 20. Identify the type of compound and write the mes. 8- PI: F‘nOULC Lava. l” P \"aoeolflorfs “W'uoCl‘lCL/Q. 12- N204 mOLLLLE‘r D a .«l mm o"? ‘Dxtrg 9.; .tr 9 :5" , J c. Fe(N02)2 \ gflaim "1mm LIL} Nam M. 21. Write the fonnula for the compounds below: a carbon (It) oxide CO b. nitrogen (I) oxide NLO c. phosphorus (II!) bromide PEP—3, d. finGWchrornate ‘1 emf; e. bariumhydroxide "l OWL f. nilmusacid acid (1. con ”mum“? Car em 'CL—tr’ech my {Ht 6. HCHgCOO é mcf cum/h a; ”air. a}; "- 0‘903. Coegar £13 Les! wise ‘r {3“ "n. {W Write equations for the following nuclear decay reactions. Make sure that both mass numbers and atomic numbers are balanced on each 9:1 OCH 4"? {2’ Decay of chlorine-32 by positron (13+) emission. side. 1 . Decay of polonium-218 by alpha ((1) emission. mg L}- ’?_l Ll— gu Po “:1 7. He.» "' Girl. Pb Decay of amen-14 by beta (3-) emission. LJ, :0: *7;quth The half-life of phosphorous—30 is 2.5 min. If you start with 35 g of phosphorus-30. how many grams would remain after 20.0 min? ‘ y . 9) r . 1 £- . __L__ ._ Eip’ls(afi .‘L+% The half-life of polonium-210 is 138.4 days. How many milligrams of polonium-210 remain alter 415.2 days if you start with 2.0 mg of the isotope? am» . i3 1.... ,_ E’.2"2——— .25; 20.0 g of a radioactive isotope are present 1:00 pm, and 5.0 9 remain at 2:00 pm. a. How many half-lives have gone by? b. How long is the half—life of the isotope? G. Predict how many grams will be left at 2:30 pm. 3. 32. 32 . \r‘fiL/q ”93+” 3:13 Decay of promefliimn-142 by electron capture. 1142 L7 lL-l'Z um ”Ma. e (.90 N C?- ...
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