Classify this reaction and balance the equation (What will be the coefficients) underline ( )Al(OH)_(3)arrow underline ( )Al_(2)O_(3)+underline ( )H_(2)O a Singlemplacement (2,1,3) b. Anuble replacement (5,2,1) c Couble replacement (2,1,2) d Decompoution (2,1,3) Question 7 (1 point) Which of the following is an example of evidence of a chemical reaction.Select all correct answers (there are more than one) b. Handwarmers getting warm in your pocket c Cutting paper into try pieces d Baking a cake e Woodburning ata camplire

## Step 1<br />The first question asks us to classify the given chemical reaction and balance the equation. The reaction given is:<br /><br />\[<br />\underline {\quad }Al(OH)_{3}\rightarrow \underline {\quad }Al_{2}O_{3}+\underline {\quad }H_{2}O<br />\]<br /><br />This reaction involves a single compound, Aluminum Hydroxide (Al(OH)3), breaking down into two simpler substances, Aluminum Oxide (Al2O3) and Water (H2O). This is a classic example of a decomposition reaction.<br /><br />## Step 2<br />To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. <br /><br />## Step 3<br />The second question asks us to identify examples of evidence of a chemical reaction. Evidence of a chemical reaction includes changes in color, the formation of a gas, the formation of a precipitate, or a change in temperature.<br /><br />## Step 4<br />Handwarmers getting warm in your pocket (b) is an example of a chemical reaction because the heat is produced by an exothermic reaction.<br /><br />## Step 5<br />Baking a cake (d) is an example of a chemical reaction because the ingredients react to form a new substance, the cake.<br /><br />## Step 6<br />Wood burning at a campfire (e) is an example of a chemical reaction because the wood reacts with oxygen in the air to form new substances, such as ash and gases.