3)Which of the following equations correctly represents positron decay of K presubscript 19 presuperscript 40
K presubscript 19 presuperscript 40 space rightwards arrow space C presubscript 17 presuperscript 36 l space plus space H presubscript 2 presuperscript 4 e K presubscript 19 presuperscript 40 space plus space e presubscript negative 1 end presubscript presuperscript 0 space rightwards arrow space A presubscript 18 presuperscript 40 r K presubscript 19 presuperscript 40 space plus space e presubscript 1 presuperscript 0 space rightwards arrow C presubscript 20 presuperscript 40 a K presubscript 19 presuperscript 40 space rightwards arrow space C presubscript 20 presuperscript 40 a space plus space beta presubscript negative 1 end presubscript presuperscript 0 K presubscript 19 presuperscript 40 space rightwards arrow space A presubscript 18 presuperscript 40 r space plus space beta presubscript 1 presuperscript 0
3)Which of the following equations correctly represents positron decay of K presubscript 19 presuperscript 40 K...
Question 7 (1 point) Which equation correctly represents positron decay of K? 0 OK + c → Ca OOK CL • He O 18K ООО Ar • B AT OOK C
19. An isotope with a high value of N/Z will end to decay through: a. alpha decay b. beta decay C. positron decay d. electron capture e. gamma decay 20.Identify the missing species in the following nuclear transmutation: 246Cm +12C 41n+? a. 254No b. 258No c. 238Cf d. 238Th e. none of the above 21. The isotope 42Sc is unstable because: a. the number of neutrons is too large in relation to the number of protons b. the number of...
222 Which of the following equations correctly represents alpha decay of Rn? 86 222 Rn 222 Fr + '18 86 87 226 88 86 222 Rn + He Ra 220 Pb + He o 222 Rn 86 82 222 Rn 218 Po + He 86 84 222 Rn At + 41B 86 85
What is the energy released in this β − nuclear reaction 40 19 K → 40 20 C a + 0 − 1 e ? (The atomic mass of 40 K is 39.963998 u and that of 40 C a is 39.962591 u)
Question 2 1 pts Which of the following equations correctly represents the fourth ionization energy of sodium? Na5+ () + e Na4+(g) Na3+(g) → Na4+(g) + Na4+(g) + 4e Nalg) O Na4+(g) → Nas+(g) + Na(g) → Na4+(g) + 4e
Complete each of the following nuclear equations: Part A: 42/19 K →?+0−1e Express your answer as a nuclear symbol. Part B: ?→86/36 Kr+1/0 n Express your answer as a nuclear symbol. Part C: 141/56 Ba→141/57 La +? Express your answer as a nuclear symbol. Part D: ?→4/2 He+ 239/94 Pu Express your answer as a nuclear symbol. Part E: 54/27 Co →?+0/+1 e Express your answer as a nuclear symbol.
A. L=3; K=6 B. L=10; K=6 C. L=7; K=9 D. L=8; K=7 The graph below shows a firm's isoquants and isocosts. The firm is initially producing Q=20 with the cost minimizing combination of K and L, where Q is output, Kis capital and L is labor. Suppose the owner decides to expand production to Q=40. However, he signed a lease on the capital necessary to produce Q=20, which he cannot get out of in the short run. In order to...
19-5. Write the equilibrium-constant expression (K) for each of the following equations: (a) SO,C1,(g) —SO,(g) + Cl2(g) (b) 2H,0,(g) — 21.0(l) + 0,(g) (c) 2 Caso, -H,0(s) + 2H,0(g) $2Caso, 2H,0(s) What are the units of K, in each case?
14. Based on the information given in Fig.-3, which of the following equations is not a consequence of Kirchhoff's Law? 4 V 20 3n Fig.-3 A. 9-1-212= 0 В. +l2-1 0 4-212-31 = 0 C. D. 5-1-3130 All of the above E. 240 6.00 15 V 6.00 6.00 9.00 6.00 Fig.-4 How many junctions are there in Fig.-4? 15. D. 6 C. 5 В) 3 A. 2 How many loops are there in Fig.-4? 16. c 5 D. 6 В....
16 16 25 39 | 40 17 18 19 JL 20 21 22 wi Questi A Moving to the next question prevents changes to this answer. te Question 7 1 points Determine the value of AG for the reaction at 298 K. CH,(g) +20,(g) → CO, (g) + 2H, 0(1) Given Substance 5° (J/mol · K)) AH :(kJ/mol) -74.8 0.0 -393.5 -285.8 186.2 205.0 213.8 69.9 CH4(g) O2(g) CO2(g) H20(1) a.-817 kJ b. +817 kJ c. -573 kJ d. +573...