1 / 24

Question 1

Question 1. What are the two half reactions that show how many electrons are gained or lost by each species in the reaction: Ni 2+ ( aq ) + Mg( s )  Ni( s ) + Mg 2+ ( aq )? A) Ni 2+ ( aq ) + e –  Ni( s ) and Mg( s )  Mg 2+ ( aq ) + e –

flavian-myles
Télécharger la présentation

Question 1

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Question 1 What are the two half reactions that show how many electrons are gained or lost by each species in the reaction: Ni2+(aq) + Mg(s) Ni(s) + Mg2+(aq)? A) Ni2+(aq) + e–Ni(s) and Mg(s) Mg2+(aq) + e– B) Ni2+(aq) + 2 e–Ni(s) and Mg(s) Mg2+(aq) + 2 e– C) Ni2+(aq) Ni(s) + 2 e– and Mg(s) + 2 e– Mg2+(aq) D) Ni2+(aq) Ni(s) + e– and Mg(s) + e– Mg2+(aq) E) Ni2+(aq) + 2 e–Ni(s) and Mg(s) + 2 e–Mg2+(aq)

  2. Question 1 What are the two half reactions that show how many electrons are gained or lost by each species in the reaction: Ni2+(aq) + Mg(s) Ni(s) + Mg2+(aq)? A) Ni2+(aq) + e–Ni(s) and Mg(s) Mg2+(aq) + e– B) Ni2+(aq) + 2 e–Ni(s) and Mg(s) Mg2+(aq) + 2 e– C) Ni2+(aq) Ni(s) + 2 e– and Mg(s) + 2 e– Mg2+(aq) D) Ni2+(aq) Ni(s) + e– and Mg(s) + e– Mg2+(aq) E) Ni2+(aq) + 2 e–Ni(s) and Mg(s) + 2 e–Mg2+(aq)

  3. Question 2 A compound that gains electrons while causing another compound to be oxidized is called a(n) _____.

  4. Question 2 A compound that gains electrons while causing another compound to be oxidized is called a(n) _____. OXIDIZING AGENT

  5. Question 3 When pressure decreases, in which direction does the equilibrium shift? A) The equilibrium shifts to the side with fewer moles of gas. B) The equilibrium shifts to the side with more moles of gas. C) The equilibrium does not shift. D) The equilibrium shifts always shifts to the right. E) The equilibrium shifts always shifts to the left.

  6. Question 3 When pressure decreases, in which direction does the equilibrium shift? A) The equilibrium shifts to the side with fewer moles of gas. B) The equilibrium shifts to the side with more moles of gas. C) The equilibrium does not shift. D) The equilibrium shifts always shifts to the right. E) The equilibrium shifts always shifts to the left.

  7. Question 4 The definition of an Arrhenius acid is A) a compound that contains hydroxide and dissolves in water to form –OH. B) a compound that is a proton donor. C) a compound that is a proton acceptor. D) a compound that contains a hydrogen atom and dissolves in water to form a hydrogen ion, H+.

  8. Question 4 The definition of an Arrhenius acid is A) a compound that contains hydroxide and dissolves in water to form –OH. B) a compound that is a proton donor. C) a compound that is a proton acceptor. D) a compound that contains a hydrogen atom and dissolves in water to form a hydrogen ion, H+.

  9. Question 5 The [H3O+] in a cabernet sauvignon wine is 5.9 x 10–4 M. What is the [–OH] in this wine? A) 5.9 x 10–4 M –OH B) 1.0 x 10–7 M –OH C) 5.9 x 10–18 M –OH D) 1.7 x 10–11 M –OH E) 1.0 x 10–14 M –OH

  10. Question 5 The [H3O+] in a cabernet sauvignon wine is 5.9 x 10–4 M. What is the [–OH] in this wine? A) 5.9 x 10–4 M –OH B) 1.0 x 10–7 M –OH C) 5.9 x 10–18 M –OH D) 1.7 x 10–11 M –OH E) 1.0 x 10–14 M –OH

  11. Question 6 What is the molarity of an HNO3 solution if 24.1 mL of a 0.250 M Ba(OH)2 solution are needed to titrate a 15.0 mL sample of the acid? A) 0.402 M HNO3 B) 0.156 M HNO3 C) 0.311 M HNO3 D) 0.201 M HNO3 E) 0.803 M HNO3

  12. Question 6 What is the molarity of an HNO3 solution if 24.1 mL of a 0.250 M Ba(OH)2 solution are needed to titrate a 15.0 mL sample of the acid? A) 0.402 M HNO3 B) 0.156 M HNO3 C) 0.311 M HNO3 D) 0.201 M HNO3 E) 0.803 M HNO3

  13. Question 7 What is the estimated age of an artifact that has 1/16 of the amount of carbon-14 (relative to carbon-12) compared to living organisms? (C-14 t1/2 = 5,730 years) A) 1,430 years B) 5,730 years C) 17,200 years D) 22,900 years E) 28,700 years

  14. Question 7 What is the estimated age of an artifact that has 1/16 of the amount of carbon-14 (relative to carbon-12) compared to living organisms? (C-14 t1/2 = 5,730 years) A) 1,430 years B) 5,730 years C) 17,200 years D) 22,900 years E) 28,700 years

  15. Question 8 Which nuclear equation is an example of nuclear fission? A) 27Al + 4He 30O + 1n 132150 B) 15O 15N+ 0e 87 +1 C) 239Np  239Pu+ 0e 9394-1 D) 235U +1n 137Te+ 97Zr+ 2 1n 92052400

  16. Question 8 Which nuclear equation is an example of nuclear fission? A) 27Al + 4He 30O + 1n 132150 B) 15O 15N+ 0e 87+1 C) 239Np  239Pu+ 0e 9394-1 D) 235U +1n 137Te+ 97Zr+ 2 1n 92052400

  17. Question 9 The equation shown below is an example of what type of nuclear reaction? 239Np  239Pu+ 0e 9394-1

  18. Question 9 The equation shown below is an example of what type of nuclear reaction? 239Np  239Pu+ 0e 9394-1 BETA DECAY

  19. Question 10 What is the bond angle of the C-O-H shown by arrow 3 in the structure below?

  20. Question 10 What is the bond angle of the C-O-H shown by arrow 3 in the structure below? 109.5°

  21. Question 11 Which compound has the highest boiling point? A) HOCH2CH2OH B) CH3NHCH2CH3 C) CH3CO2CH2CH3 D) CH3NHCH2OH E) NaCH3COO

  22. Question 11 Which compound has the highest boiling point? A) HOCH2CH2OH B) CH3NHCH2CH3 C) CH3CO2CH2CH3 D) CH3NHCH2OH E) NaCH3COO

  23. Question 12 What is the functional group shown in the molecule below?

  24. Question 12 What is the functional group shown in the molecule below? ESTER

More Related