40K19--------->40Ar18 +0Beta1
D is the correct option.
Question 7 (1 point) Which equation correctly represents positron decay of K? 0 OK + c...
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...
Question Which equation correctly represents the electron affinity of potassium A. K (g) → K+ (g) +ę- B. K (g) → K-(g) + e- C. K- (g) → K (g) + e- D. K (g) + e- → K-(g) E. K+ (g) + e- →K (g) A. AO B. B C. C D. D E. EO Reset Selection
Question 3 (1 point) Which of the following correctly gives the best coefficients for the reaction below? N_H4 + H2O2 -------> N2 + H20 O 1, 1, 1, 1 O 1, 2, 1,4 O2, 4, 2,8 1, 4, 1, 4 What coefficient is placed in front of O, to complete the balancing of the following equation? _CHg + _О, -------> _CO, + _Н,0 O5 ООО
Which of the reactions below correctly represents the alpha decay of thorium- 232? 232 Th 236 232 A) He + 233 90 92U 90 90 Th c) 232Th tje + 233 AC D) 232Th → He + 23% Ra E) 96Th je + 23% pa A B С D E
Which nuclear equation is an example of positron emission? Multiple Choice O Fr — *'At + 7 O [A1+ He — ODS 0 0 → LN D A 10 Naut el retorn de o 1. Litt o Cintos o
EF 18. Which equation correctly represents the electron affinity of calcium? A) Ca (g) + e - Ca(g) B) Ca (g) → Cat (g) + e C) Ca (g) → Ca (g) + e D) Ca" (g) → Ca (g) + e E) Ca* (g) + e - Ca (g)
Question 22 (1 point) (c) (d) Which transition represents a decrease in entropy of the system? (b) → (c) O (d) - (c) (a) → (c) (c) → (b) Question 20 (1 point) Ethanol melts at -114 °C and boils at 78 °C at a constant pressure of 1 atm. What state of matter must a sample of ethanol be in at 100°C and 1 atm? solid and liquid in equilibrium gas liquid O solid liquid and gas in equilibrium...
Question 16 (1 point) What type of decay process is occurring in the nuclear reaction represented by the following diagram? 79 78 Neutrons 77 52 53 54 Atomic number O positron emission O B emission a emission
Question 6 (20 points). Determine whether the following series converge or diverge, and by which test: o arctan(k) k-0 oo ok k! k-0 Question 6 (20 points). Determine whether the following series converge or diverge, and by which test: o arctan(k) k-0 oo ok k! k-0
i will rate For the rectangular object in the figure below, which equation correctly represents Newton's 2nd law? Assume that the object is in static equilibrium. B and W represent the buoyancy force and the weight of the object, respectively. [2 Marks] Select one: a. B+W + ma = 0 O b. None of the suggested O c. B-W=0 O d. B+W=ma