1. Consider the following reaction: 2H₂O (l) → 2H₂ (g) + O₂ (g) Which of the following statements is/are true for this reaction? A. This is a synthesis reaction. B. This is a decomposition reaction. C. This is a combustion reaction. D.None of the above 2. The reaction below shows the equation for the combustion of methane gas. How does the chemical equation demonstrate the Law of Conservation of Matter? A. There is one CH₄ molecule on the reactant side and one CO₂ molecule on the product side of the reaction. B. There are two O₂ molecules on the reactant side and two H₂O molecules on the product side in the reaction. C. There are four oxygen atoms, four hydrogen atoms and one carbon atom on both the reactant and product side of the reaction. D. The reaction does not satisfy the Law of Conservation of Matter. 3. Chemists use the activity series of metals to determine if a single replacement reaction will occur. Elements higher on the list are more reactive than metals lower on the list and are able to replace metals in a single replacement reaction. Below is the activity series. Complete the following statement with all the responses that apply. A student drops a copper penny into a solution of hydrochloric acid. The copper ... A. will replace the hydrogen because copper is more reactive than hydrogen. B. will not replace the hydrogen because the copper is less reactive than hydrogen. C. will replace the hydrogen because it is lower on the activity series than hydrogen. D. will not replace hydrogen because hydrogen is lower on the activity series than it. 4. Which of the following is NOT a single replacement reaction? A. 2 Na (s) + Cl₂ (g) ⟶ 2 NaCl (s) B. Mg(s) + 2 HCl (aq) ⟶ MgCl₂ (aq) + H₂ (g) C.2 Na (s) + 2 H₂O (l) ⟶ 2 NaOH (aq) + H₂ (g) D.Fe (s) + CuCl₂ ⟶ FeCl₂ (aq) + Cu(s) 5. Chemical reactions obey the Law of Conservation of Matter, which states that matter is neither created nor destroyed in any physical or chemical change. When forty-five grams (45 g) of glucose, C₆H₁₂O₆, is burned in the presence of oxygen gas, the products are sixty-five (65 g) of carbon dioxide, CO₂, and twenty-six grams (26 g) of water vapor, H₂O. What mass of oxygen gas was consumed in this reaction? A.46 g O₂ B.48 g O₂ C.39 g O₂ D.96 g O₂

1. Consider the following reaction: 2H₂O (l) → 2H₂ (g) + O₂ (g) Which of the following statements is/are true for this reaction? A. This is a synthesis reaction. B. This is a decomposition reaction. C. This is a combustion reaction. D.None of the above 2. The reaction below shows the equation for the combustion of methane gas. How does the chemical equation demonstrate the Law of Conservation of Matter? A. There is one CH₄ molecule on the reactant side and one CO₂ molecule on the product side of the reaction. B. There are two O₂ molecules on the reactant side and two H₂O molecules on the product side in the reaction. C. There are four oxygen atoms, four hydrogen atoms and one carbon atom on both the reactant and product side of the reaction. D. The reaction does not satisfy the Law of Conservation of Matter. 3. Chemists use the activity series of metals to determine if a single replacement reaction will occur. Elements higher on the list are more reactive than metals lower on the list and are able to replace metals in a single replacement reaction. Below is the activity series. Complete the following statement with all the responses that apply. A student drops a copper penny into a solution of hydrochloric acid. The copper ... A. will replace the hydrogen because copper is more reactive than hydrogen. B. will not replace the hydrogen because the copper is less reactive than hydrogen. C. will replace the hydrogen because it is lower on the activity series than hydrogen. D. will not replace hydrogen because hydrogen is lower on the activity series than it. 4. Which of the following is NOT a single replacement reaction? A. 2 Na (s) + Cl₂ (g) ⟶ 2 NaCl (s) B. Mg(s) + 2 HCl (aq) ⟶ MgCl₂ (aq) + H₂ (g) C.2 Na (s) + 2 H₂O (l) ⟶ 2 NaOH (aq) + H₂ (g) D.Fe (s) + CuCl₂ ⟶ FeCl₂ (aq) + Cu(s) 5. Chemical reactions obey the Law of Conservation of Matter, which states that matter is neither created nor destroyed in any physical or chemical change. When forty-five grams (45 g) of glucose, C₆H₁₂O₆, is burned in the presence of oxygen gas, the products are sixty-five (65 g) of carbon dioxide, CO₂, and twenty-six grams (26 g) of water vapor, H₂O. What mass of oxygen gas was consumed in this reaction? A.46 g O₂ B.48 g O₂ C.39 g O₂ D.96 g O₂

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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1. Consider the following reaction: 2H₂O (l) → 2H₂ (g) + O₂ (g)

Which of the following statements is/are true for this reaction?

A. This is a synthesis reaction.

B. This is a decomposition reaction.

C. This is a combustion reaction.

D.None of the above

2. The reaction below shows the equation for the combustion of methane gas. How does the chemical equation demonstrate the Law of Conservation of Matter?

A. There is one CH₄ molecule on the reactant side and one CO₂ molecule on the product side of the reaction.

B. There are two O₂ molecules on the reactant side and two H₂O molecules on the product side in the reaction.

C. There are four oxygen atoms, four hydrogen atoms and one carbon atom on both the reactant and product side of the reaction.

D. The reaction does not satisfy the Law of Conservation of Matter.

3. Chemists use the activity series of metals to determine if a single replacement reaction will occur. Elements higher on the list are more reactive than metals lower on the list and are able to replace metals in a single replacement reaction. Below is the activity series. Complete the following statement with all the responses that apply. A student drops a copper penny into a solution of hydrochloric acid. The copper ...

A. will replace the hydrogen because copper is more reactive than hydrogen.

B. will not replace the hydrogen because the copper is less reactive than hydrogen.

C. will replace the hydrogen because it is lower on the activity series than hydrogen.

D. will not replace hydrogen because hydrogen is lower on the activity series than it.

4. Which of the following is NOT a single replacement reaction?

A. 2 Na (s) + Cl₂ (g) ⟶ 2 NaCl (s)

B. Mg(s) + 2 HCl (aq) ⟶ MgCl₂ (aq) + H₂ (g)

C.2 Na (s) + 2 H₂O (l) ⟶ 2 NaOH (aq) + H₂ (g)

D.Fe (s) + CuCl₂ ⟶ FeCl₂ (aq) + Cu(s)

5. Chemical reactions obey the Law of Conservation of Matter, which states that matter is neither created nor destroyed in any physical or chemical change. When forty-five grams (45 g) of glucose, C₆H₁₂O₆, is burned in the presence of oxygen gas, the products are sixty-five (65 g) of carbon dioxide, CO₂, and twenty-six grams (26 g) of water vapor, H₂O. What mass of oxygen gas was consumed in this reaction?

A.46 g O₂

B.48 g O₂

C.39 g O₂

D.96 g O₂

Most Reactive
19
POTASSIUM K
11
SODIUM Na
CALCIUM
12
MAGNESIUM Mg
13
ALUMINUM AI
6
CARBON с
30
ZINC Zn
IRON
20
Ca
TIN
LEAD
HYDROGEN
SILVER
26
Fe
50
Sn
82
Pb
1
H
29
COPPER Cu
47
Ag
79
GOLD Au
78
PLATINUM Pt
Least Reactive

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