For each reaction you observed, the names of the reactants and products are given below. You must: 1. Write the correct formula for each reactant and product. 2. Balance each equation. A. Combination reactions 1. Magnesium + oxygen Mg + O₂ → 2MgO Oy 2. Sulfur + oxygen magnesium oxide sulfur dioxide B. Analysis of the Copper Content of a Penny 1. zinc + hydrochloric acid → zinc chloride + hydrogen Zn +2 HCl → ZnCl₂ + H₂ (unbalanced) (unbalanced) C. Single Replacement Reactions The subscripts on specific ions in the products are not always the same as the subscripts in the reactants. Not reaction I below. See how the nitrate ion has a subscript of one in silver nitrate and two in copper nitrate. 1. copper + silver nitrate → copper(II) nitrate + silver Cu + AgNO, → Cu(NO3)₂ + Ag 3. calcium + water → calcium hydroxide + hydrogen (unbalanced) 2. magnesium + hydrochloric acid → magnesium chloride + hydrogen D. Decomposition Reactions 1. copper(II) sulfate pentahydrate →→ copper(II) sulfate + water 2. ammonium carbonate → ammonia + water + carbon dioxide

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Chapter4: Stoichiometry Of Chemical Reactions
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For each reaction you observed, the names of the reactants and products are given below. You must:
1. Write the correct formula for each reactant and product.
2. Balance each equation.
A. Combination reactions
1. Magnesium + oxygen
Mg + O₂ → 2MgO
2. Sulfur + oxygen
magnesium oxide
sulfur dioxide
B. Analysis of the Copper Content of a Penny
1. zinc + hydrochloric acid
Zn +2 HCI → ZnCl₂
+
zinc chloride + hydrogen
H₂
(unbalanced)
(unbalanced)
C. Single Replacement Reactions
The subscripts on specific ions in the products are not always the same as the subscripts in the reactants. Note
reaction I below. See how the nitrate ion has a subscript of one in silver nitrate and two in copper nitrate.
1. copper + silver nitrate → copper(II) nitrate + silver
Cu AgNO, → Cu(NO₂)₂ + Ag
3. calcium + water → calcium hydroxide + hydrogen
(unbalanced)
2. magnesium + hydrochloric acid → magnesium chloride + hydrogen
D. Decomposition Reactions
1. copper(II) sulfate pentahydrate → copper(II) sulfate + water
2. ammonium carbonate →>> ammonia + water + carbon dioxide
Transcribed Image Text:For each reaction you observed, the names of the reactants and products are given below. You must: 1. Write the correct formula for each reactant and product. 2. Balance each equation. A. Combination reactions 1. Magnesium + oxygen Mg + O₂ → 2MgO 2. Sulfur + oxygen magnesium oxide sulfur dioxide B. Analysis of the Copper Content of a Penny 1. zinc + hydrochloric acid Zn +2 HCI → ZnCl₂ + zinc chloride + hydrogen H₂ (unbalanced) (unbalanced) C. Single Replacement Reactions The subscripts on specific ions in the products are not always the same as the subscripts in the reactants. Note reaction I below. See how the nitrate ion has a subscript of one in silver nitrate and two in copper nitrate. 1. copper + silver nitrate → copper(II) nitrate + silver Cu AgNO, → Cu(NO₂)₂ + Ag 3. calcium + water → calcium hydroxide + hydrogen (unbalanced) 2. magnesium + hydrochloric acid → magnesium chloride + hydrogen D. Decomposition Reactions 1. copper(II) sulfate pentahydrate → copper(II) sulfate + water 2. ammonium carbonate →>> ammonia + water + carbon dioxide
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