QuestionApril 16, 2026

This question has two parts. First, answer Part A. Then answer Part B. You must answer Part A correctly in order to get credit for answering Part B correctly. Part A : Below is an equation showing that thydrogen peroxide can break down into water and oxygen. Determine what coefficients are missing in this chemical equation. Enter the correct numerical answers in the boxes. 2H_(2)O_(2)arrow square H_(2)O+square O_(2) Part B: Using the equation from Part A, answer Part B. Complete the statement by selecting the appropriate answer. The type of reaction that occurs when one reactant breaks down inte two or more products is called a __ reaction A synthesis B single replacement C decomposition D combustion

This question has two parts. First, answer Part A. Then answer Part B. You must answer Part A correctly in order to get credit for answering Part B correctly. Part A : Below is an equation showing that thydrogen peroxide can break down into water and oxygen. Determine what coefficients are missing in this chemical equation. Enter the correct numerical answers in the boxes. 2H_(2)O_(2)arrow square H_(2)O+square O_(2) Part B: Using the equation from Part A, answer Part B. Complete the statement by selecting the appropriate answer. The type of reaction that occurs when one reactant breaks down inte two or more products is called a __ reaction A synthesis B single replacement C decomposition D combustion
This question has two parts. First, answer Part A. Then answer Part B. You must answer Part A correctly in order to get credit for answering Part B correctly. Part A : Below is an equation showing that thydrogen peroxide can break down into water and oxygen. Determine what coefficients are missing in this chemical equation. Enter the correct numerical answers in the boxes. 2H_(2)O_(2)arrow square H_(2)O+square O_(2) Part B: Using the equation from Part A, answer Part B. Complete the statement by selecting the appropriate answer. The type of reaction that occurs when one reactant breaks down inte two or more products is called a __ reaction A synthesis B single replacement C decomposition D combustion

Solution
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Answer

Part A: 2H_{2}O, \ 1O_{2} ### Part B: C decomposition Explanation 1. Balance the chemical equation Hydrogen peroxide: 2H_{2}O_{2} \rightarrow \square H_{2}O + \square O_{2} Count atoms: - Left: H = 4, O = 4 - Right: Place 2 before H_{2}O → H = 4, O = 2(from H_{2}O) + 2(from O_{2}) = 4. Balanced equation: 2H_{2}O_{2} \rightarrow 2H_{2}O + 1O_{2} 2. Identify reaction type One reactant → multiple products → **decomposition** reaction.

Explanation

1. Balance the chemical equation <br /> Hydrogen peroxide: $2H_{2}O_{2} \rightarrow \square H_{2}O + \square O_{2}$ <br />Count atoms: <br />- Left: H = 4, O = 4 <br />- Right: Place 2 before $H_{2}O$ → H = 4, O = 2(from $H_{2}O$) + 2(from $O_{2}$) = 4. <br />Balanced equation: $2H_{2}O_{2} \rightarrow 2H_{2}O + 1O_{2}$ <br /><br />2. Identify reaction type <br /> One reactant → multiple products → **decomposition** reaction.
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