21. Given the balanced equation representing a reaction: 2H2 + O2 → 2H20 What is the mass of H20 produced when 10.0 grams of H2 reacts completely with 80.0 grams of 02? A. 70.0 g В. 90.0g С. 100.g D. 450.g

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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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21
A. 40% Ca, 31% P, 16% 0
B. 22% Ca, 25% P, 53% 0
C. 39% Ca, 20% P, 41% 0
D. 30% Ca, 23% P, 47% 0
21. Given the balanced equation representing a reaction:
2H2 + O2 → 2H20
What is the mass of H20 produced when 10.0 grams of H2 reacts completely with 80.0
grams of 02?
A. 70.0 g
B. 90.0 g
C. 100. g
D. 450.g
22. Hydrochloric acid (HCI) is a strong acid, and Hydroiodic acid (HI) is a weak acid. Which of
following would have the greater pH.
А. 1.0 М НОI
01 M HCL
Transcribed Image Text:A. 40% Ca, 31% P, 16% 0 B. 22% Ca, 25% P, 53% 0 C. 39% Ca, 20% P, 41% 0 D. 30% Ca, 23% P, 47% 0 21. Given the balanced equation representing a reaction: 2H2 + O2 → 2H20 What is the mass of H20 produced when 10.0 grams of H2 reacts completely with 80.0 grams of 02? A. 70.0 g B. 90.0 g C. 100. g D. 450.g 22. Hydrochloric acid (HCI) is a strong acid, and Hydroiodic acid (HI) is a weak acid. Which of following would have the greater pH. А. 1.0 М НОI 01 M HCL
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