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4 pts Question 8 You must show your work to receive points for the following question....
You must show your work to receive points for the following question. It doesnt matter if you answer true or false. Points will be adjusted based on work shown. What is rust? What causes it to form (explain with regards to anodic and cathodic regions)? What are two methods employed to prevent its formation? True False
O pts Question 10 You must show your work to receive points for the following question. It doesnt matter if you answer true or false. Points will be adjusted based on work shown. Bonus: for up to five extra points show the work to answer the following question Consider a galvanic cell that uses the reaction: 2 Ag+laq) + Sn(s) --> 2 Ag(s) + Sn2+(aq) Calculate the cell potential at 25C for a cell that has the following ion concentrations:...
You must show your work to receive points for the following question. It doesnt matter if you answer true or false. Points will be adjusted based on work shown. Bonus: for up to five extra points show the work to answer the following question Consider a galvanic cell that uses the reaction: 2 Ag+(aq) + Sn(s) --> 2 Ag(s) + Sn2+(aq) Calculate the cell potential at 25C for a cell that has the following ion concentrations: [Ag+] = 0.010 M,...
In order to receive full credit on these problems, you must clearly show all your work. An answer without justification will receive 0 credit. 1. (10 marks) Consider the subspace V = Span 11 [2] 5] - 1 [5] -71 [1] doo (a) Find a basis for V and V. (b) Find dim(V) and dim(V+). (c) Find a matrix B satisfying V = null(B). 2. (2 marks) True or False: If E is an elementary matrix, then nullity(A) = nullity(EA)....
number 6 and 7 please?
For the following problems, you must show your work to receive ANY credit. You must show the appropriate balanced chemical equation to receive ANY credit for the following calculations. 6. Calculate the pH of a 0.255 M aqueous solution of formic acid (HCO,H). K = 18 x 10-5 M. (8 pts) M. 7. Calculate the pH of a 0.275 M aqueous solution of dimethylamine ((CH3)2NH). Kb = 54 x 10 (8 pts)
For all the remaining questions, you must show your work to receive credit. 9) What is the mass, in grams, of 0.428500 moles of potassium? (2 pts.) LgK
show all work
2. For the following 4 questions, you must show your work to receive full credit: a. Calculate the frequency of a photon whose wavelength is 659 nm. b. What is the energy of a photon whose wavelength is 784 nm? c. Calculate the wavelength, in m, of a photon whose energy is 2.3 x 10-19 J. d. Calculate the energy of a photon whose wavelength is 637 nm/cycle.
You must show all work in order to receive f any mathematical question. Identify the following substances as a strong electrolyte, weak e nonelectrolyte. (2 pts. each) 1. Ocf C2H5OH a. None Ca(CN)2 b. c. HCN d. HI MgI2 e.
Compute the arclength of the following curve. You must SHOW your work to receive full credit. 3 x (t) = 2tz +2, y(t) = 2t -3, 0 <t<1 Your answer may be in the form of a calculator input OR a decimal rounded to 2 decimal places.
You MUST show all of your work in order to receive full points. Due No LATER than Wednesday - October 24th at 11am. Geosynchronous Satellites (Possible Points 30) In this age of Information it is imperative that we be able to maintain constant communications with different parts of the world. In order to do this we use satellites placed in orbit with a broad range of area over which they can transmit and receive signals. As satellites orbit the Earth...