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Quiz: March 5

Quiz: March 5. 2. 2Na, 2O, 2 H on each side. Balance the following equations: Na 2 O + H 2 O -> NaOH H 2 O 2 -> H 2 O + O 2 H 2 + F 2 -> HF CS 2 + O 2 -> CO 2 + SO 2 Al + ZnCl 2 -> Zn + AlCl 3 Translate the following:

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Quiz: March 5

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  1. Quiz: March 5 2 2Na, 2O, 2 H on each side Balance the following equations: • Na2O + H2O -> NaOH • H2O2 -> H2O + O2 • H2 + F2 -> HF • CS2 + O2 -> CO2 + SO2 • Al + ZnCl2 -> Zn + AlCl3 Translate the following: • Calcium reacts with sulfur to produce calcium sulfide. • Water decomposes to form hydrogen and oxygen. 2 2 4 4 Reactants 2 O; Prod. 3 O 2 3 2 2 3 3 2 Ca + S -> CaS 2 H2O -> 2 H2 + O2

  2. 2 + Write the following equations and balance them. Cu+ NO3 1- Cl1- Ca2+ 1. copper (I) nitrate reacts with calcium chloride to form copper (I) chloride and calcium nitrate. balance the charges! ( )2 Cu+ Cl1- + NO3 1- Ca2+ 2 CuNO3 + CaCl2 -> CuCl + Ca(NO3)2 2 balance the equation 2. Magnesium hydroxide reacts with hydrochloric acid, HCl, to form magnesium chloride and water. you try! Mg(OH)2 + 2 HCl -> MgCl2 + 2 H2O 3. Chromium (III) oxide is formed by the reaction of chromium and oxygen. 4 Cr + 3 O2 -> 2 Cr2O3

  3. Finish the Following for homework #32 p and 59,60 page 245 32. The compound “cisplatin” has been found to be effective in treating some types of cancer. It can be synthesized using the reaction on page 237 of your book. a) How much “cisplatin” can be produced from 2.50 g PtCl2(NH3)2 and excess NH3. ? b) How much NH3 is needed? 59. In the decomposition of sodium chlorate, 31.7 g of oxygen are formed. How many grams of sodium chloride are produced? NaClO3 -> NaCl + O2 (unbalanced reaction) 60. The action of carbon monoxide on iron (III) oxide can be represented by Fe2O3 + 3 CO -> 2 Fe + 3 CO2. How much carbon monoxide is used if 57.5 g of iron were produced?

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