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34. The phase changes B-C and D - E are not associated with temperature increases because the heat energy (q) is consumed to A) increase distances between molecules B) break intramolecular bonds C) rearrange atoms within molecules D) increase the density of the sample gas liquid and gas TOC solid and liquid liquid B solid Heat added (1) 35. Which of these is a weak base? A) NaOH B) HCI E) CH3CH2OH C) Naci D) NH 36. When discussing energy...
Which of the following acids is a weak electrolyte? a) HNO3 b) HCI c) HI d) HCIO4 e) H2SO3
_____ 16. Which of the following is a weak base? A. NaOH B. Ca(OH)2 C. NH3 D. RbOH
Classify NaOH as a strong base, weak base, strong acid, or weak acid. Then answer the following question. What is the pH of a 7.8 x 10-SM NaOH(aq) solution? a. 4.1 b. 9.5 C. 9.9 d. 4.5 e. 13.0
C. Net lonic Equations-A Study Assignment 1. Strong Acid and Strong Base: equation: HCl(aq) NaOH(aq) NaCl(aq)H20(0) total ionic: net ionic: 2. Strong Acid and Weak Base: equation: HCaq)NH OH(aqNHCI(aq) +H200) total ionic: net ionic: 3. Weak Acid and Strong Base: equation: HF(ag) + NaOH(a)NaF(aq)HO0) total ionic: net ionic: 4. Weak Acid and Weak Base: equation: HF(aq) +NH0H aqNHF(aq)H200) total ionic: net ionic:
Which of the following acids is a weak electrolyte? a) HNO3 b) HCI c) HI d) HCIO4 e) H2SO3
Question 6 4 pts In the neutralization of a weak base, B (aq) + HCI=BHCI the activation energy, E, is 126 kJ/mol and the rate constant at 30°C is 9.8 109 min. What is the rate constant at 35°C? 4.4x10min 22 * 10 min-1 23* 10 min 4.5 * 10 min
Can you please explain the steps and products for: a) NaOH b) 1-bromopropane NH c) HCI, H2O, A
Question 35 When titrating a weak monoprotic acid with NaOH at 25°C, the A) titration will require more moles of acid than base to reach the equivalence point. B) pH will be less than 7 at the equivalence point. C) pH will be greater than 7 at the equivalence point. D) titration will require more moles of base than acid to reach the equivalence point. E) pH will be equal to 7 at the equivalence point. Question 36
5. Is the forward or reverse reaction favored in the following reactions? A. CH3CH2OH + NaH + CH3CH2ON + H2 B. HCI + NH; NHẶCI C. CH3NH2 + CH3CH2OH CH3CH2O + CH3NH 3: D. C,H,OH + NaNH2 - CHONa + NH3 E. H2O + NaCl + NaOH + HCI