Adapted by Nelson Nuñez-Rodriguez
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By David W. Ball
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| QUESTION | ANSWER |
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1. From the statement “nitrogen and hydrogen react to produce ammonia,” identify the reactants and the products. |
1. reactants: nitrogen and hydrogen; product: ammonia |
|
3. From the statement “magnesium hydroxide reacts with nitric acid to produce magnesium nitrate and water,” identify the reactants and the products. |
3. reactants: magnesium hydroxide and nitric acid; products: magnesium nitrate and water |
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5. Write and balance the chemical equation described by Exercise 1. |
5. N2 + 3H2 → 2NH3 |
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7. Write and balance the chemical equation described by Exercise 3. |
7. Mg(OH)2 + 2HNO3 → Mg(NO3)2 + 2H2O |
|
9. Balance: ___NaClO3 → ___NaCl + ___O2 |
9. 2NaClO3 → 2NaCl + 3O2 |
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11. Balance: ___Al + ___O2 → ___Al2O3 |
11. 4Al + 3O2 → 2Al2O3 |
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13. How would you write the balanced chemical equation in Exercise 10 if all substances were gases? |
13. N2(g) + 3H2(g) → 2NH3(g) |