Quiz: March 5 Balance the following equations: 1. Na 2 O + H 2 O -> NaOH 2. H 2 O 2 -> H 2 O + O 2 3. H 2 + F 2 -> HF 4. CS 2 + O 2 -> CO 2 + SO 2 5. Al.

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Quiz: March 5 Balance the following equations: 1. Na 2 O + H 2 O -> NaOH 2. H 2 O 2 -> H 2 O + O 2 3. H 2 + F 2 -> HF 4. CS 2 + O 2 -> CO 2 + SO 2 5. Al + ZnCl 2 -> Zn + AlCl 3 Translate the following: 6. Calcium reacts with sulfur to produce calcium sulfide. 7. Water decomposes to form hydrogen and oxygen. 2 2Na, 2O, 2 H on each side Reactants 2 O; Prod. 3 O Ca + S -> CaS 2 H 2 O -> 2 H 2 + O 2

Write the following equations and balance them. 1. copper (I) nitrate reacts with calcium chloride to form copper (I) chloride and calcium nitrate. 2. Magnesium hydroxide reacts with hydrochloric acid, HCl, to form magnesium chloride and water. 3. Chromium (III) oxide is formed by the reaction of chromium and oxygen. Cu + NO 3 1- Cu + Ca 2+ NO 3 1- Cl balance the charges! 2 ( ) 2 CuNO 3 + CaCl 2 -> CuCl + Ca(NO 3 ) 2 balance the equation 2 2 Mg(OH) HCl -> MgCl H 2 O 4 Cr + 3 O 2 -> 2 Cr 2 O 3 you try!

Finish the Following for homework #32 p and 59,60 page 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 PtCl 2 (NH 3 ) 2 and excess NH 3. ? b) How much NH 3 is needed? b) How much NH 3 is needed? 59. In the decomposition of sodium chlorate, 31.7 g of oxygen are formed. How many grams of sodium chloride are produced? NaClO 3 -> NaCl + O 2 (unbalanced reaction) 60. The action of carbon monoxide on iron (III) oxide can be represented by Fe 2 O CO -> 2 Fe + 3 CO 2. How much carbon monoxide is used if 57.5 g of iron were produced?