2 cgh 1b 25 o 2 7 co 2 is h 2 0 g iron reacts with

Info icon This preview shows pages 2–3. Sign up to view the full content.

View Full Document Right Arrow Icon
2 CgH 1B + 25 O 2 -7 ~ CO 2 + IS H 2 0 g, Iron reacts with oxygen gas to form iron(lll)oxide, _ tt Pe, + _ 3 0 :l -'t 2 I='e 0, - :2.7 h. Magnesium hydroxide reacts with hydrochloric acid (Hel) to produce magnesium chloride and water. i. Silver nitrate reacts with sodium bromide to form silver bromide and sodium nitrate.
Image of page 2

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
2. How much is in a mole? Why do chemists need the mole unit? I mole ot part; cltl:, -:: (0.02 y. 10 2?> PQrti c.le.s. C ht.yni sts new to Yr\O Ie, to be, /lIb\e, 3. Explain when substances are called when they are called molecules, and when they are called formula units, 4. Complete the following mole conversions. Show the dimensional analysis work! a. 2.55 moles NaCI -;'formula units :H r. b.02 x 10 .u. 2.S5~ .'JaCI x -.:: I NaCI m0 - b, 8,7 X 10 25 atoms Ag -;. moles I ~ .. I, A.9 c. 0,95 g CH 4 -;. moles d. 7,45 g H 2 0 -;'molecules lJ 23 - to. 0 Z ~ 10 ,",0 If!.. , ... "I.,v.> J.l.~:O -.:::. 2. '1 q )( /0 M",let"lfl S 1-1].0 / .... ye: e. 1.3 x 10 3 moles Ca -;'grams 40.1 ~ CfA.. I ~ ea. --; CGLi f. 7.5 X 10 24 formula units KBr -;'grams l~ KfSr /1'1. a 9 ~, ::: 83 9 ;<8['" --"----- )l x 21 ~~ I r;£1 K8( t, .021-10 /' --. g. 41.5 g Cu -;'moles :: (fun one) h. 1.2 x 10. 2 g Ag -;'millimoles -:1 I r'rIole.. 1000 tnmo l 'I. II mmo l [·2 y. 10 B A j y. :: r 0 1 . '\ 5 A~ I fo'lO\e,
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern