13-2

**Balancing Equations Worksheet** //<---Previous Assignment - Next Assignment--->// media type="custom" key="6581915"
 * __Time Length__ **
 * 5 Days
 * __Instructions__ **

// Complete the "worksheet" below. Read all directions carefully. //

** __Worksheet__ **
 * 1) Create a new page titled 13-2 Balancing Equations
 * 2) go to []
 * 3) do 5 advanced problems at a time. (Minimum of **50 correct answers for full credit**.)
 * 4) ** Copy the final results by highlighting from the top left of the first equation, dragging your mouse to the bottom right of the last tries needed number to your page then identify the type of reaction in the middle empty box before you do any more.  **
 * 5) ** If you are running out of time, click check my answer till it lets you skip to the end, then copy your results. **
 * 6) Only the ones you get right count.

media type="file" key="13-2 Balancing Equations - Word Equations.wmv" width="300" height="300" Hydrogen gas = H2 Nitrogen gas = N2 Oxygen gas = O2 Fluorine gas = F2 Chlorine gas = Cl2 Bromine liquid = Br2 Iodine solid = I2 Unless otherwise stated, water is in liquid form.
 * **Balanced Equation** || **type of Reaction** || **Tries Needed** ||
 *  C 10 H 8 + 12 O 2  →  10 CO 2 + 4 H 2 O   || Combustion (because it has oxygen on the left,  CO 2, and H 2 O on the right  || 1 ||
 *  8 Fe + S 8  → 8 FeS  || Synthesis (because it puts many things into one) || 1 ||
 *  2 H 2 O  →  2 H 2 + O 2   || Decomposition (because it is one thing breaking down into many) || 1 ||
 *  Mg + 2 H 2 O  →  Mg(OH) 2 + H 2   || Single Replacement (One of the reactants looses stuff to the other) || 1 ||
 *  Pb(NO 3 ) 2 + 2 KI  →  PbI 2 + 2 KNO 3   || Double Replacement (both reactants switch stuff with each other) || 1 ||
 * __Review Videos__ **
 * media type="file" key="13-2 Balancing Equations - Skeleton Equations - Basic.wmv" width="300" height="300"media type="file" key="13-2 Balancing Equations - Skeleton Equations - Advanced.wmv" width="300" height="300"
 * When you finish with the above and you want extra practice,** Do the word problems below
 * This video will show you how
 * Important notes:**

//For each of the following, write the skeleton equation and then balance the equation. Be sure to use all proper symbols like (s), (l), (g), and (aq). Write your answers on your own paper.//

Hydrogen sulfide gas reacts with oxygen gas to yield sulfur dioxide gas and water. Skeleton equation: H2S(g) + O2(g) → SO2(g) + H2O(l) Balanced equation: 2H2S(g) + 3O2(g) → 2SO2(g) + 2H2O(l) (You need not write the equation twice, just balance the skeleton equation.)
 * Example:**


 * 1) Liquid carbon disulfide reacts with oxygen gas to yield carbon dioxide gas and sulfur dioxide gas.
 * 2) Methane (CH4) gas reacts with oxygen gas to yield carbon dioxide gas and water.
 * 3) Solid zinc sulfide reacts with oxygen gas to yield solid zinc oxide and sulfur dioxide gas.
 * 4) Solid phosphorus (P4) reacts with oxygen gas to yield phosphorus(V) oxide gas.
 * 5) Solid potassium chlorate decomposes when heated to yield solid potassium chloride and oxygen gas.
 * 6) Solid sodium nitrate decomposes when heated to yield solid sodium nitrite and oxygen gas.
 * 7) Solid copper(II) nitrate decomposes when heated to yield solid copper(II) oxide, nitrogen dioxide, and oxygen gas.
 * 8) Solid phosphorus(III) oxide reacts with oxygen to yield phosphorus(V) oxide.
 * 9) Ozone (O3) gas decomposes to yield oxygen gas.
 * 10) Solid iron reacts with water to yield solid iron(III) oxide and hydrogen gas.