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 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
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
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