Answer: (3) different decay modes and different half-lives
Explanation: Potassium-37 and Potassium-42 have the same number of protons but different numbers of neutrons i.e. they have same atomic number but different mass number. They are isotopes. Thus K-37 and K-42 have different decay modes
K-37 is positron decay and K-42 is beta decay.
K-37 has a half life of 1.23 seconds and K-42 has a half life of 12.4 hrs.
Thus they have different decay modes and different half lives.
Answer:
A biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is threatened by human habitation.
Explanation:
Answer:
Es casi como si este sitio se utiliza para responder preguntas académicas, no para ch/atear ocioso
Explanation:
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Answer:
P₂ = 5000 KPa
Explanation:
Given data:
Initial volume = 2.00 L
Initial pressure = 50.0 KPa
Final volume = 20.0 mL (20/1000=0.02 L)
Final pressure = ?
Solution:
The given problem will be solved through the Boly's law,
"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"
Mathematical expression:
P₁V₁ = P₂V₂
P₁ = Initial pressure
V₁ = initial volume
P₂ = final pressure
V₂ = final volume
Now we will put the values in formula,
P₁V₁ = P₂V₂
50.0 KPa × 2.00L = P₂ × 0.02 L
P₂ = 100 KPa. L/0.02 L
P₂ = 5000 KPa
