Answer: D.
Explanation: D. Acetone, Acetone may be rinsed over materials to wash off the explosive residue.
Hope this helps :)
The Probability of spending at least half an hour on exactly one subject is mathematically given as
P(1)= 0.50
<h3>What is the
Probability of spending
at least
half an
hour on exactly one
subject </h3>
Question Parameters:
The amount of study time that Actuary Tong will spend on each exam in a day follows a continuous random variable that ranges from 0 to 1 hour.
Generally, the equation for the Probability of spending at least half an hour on a subject is mathematically given as
P(A)= (1 – 0.5)/(1 – 0)
P(A)= 0.5
Hence, the Probability of spending at least half an hour on exactly one subject is mathematically given as
P(1)=2C1 * 0.5 * 0.5
P(1)= 0.50
For more information on Probability
brainly.com/question/795909
SO₂ is made from 1 S atom and 2 O atoms.
SO₂ → S + 2O
The stoichiometric ratio between SO₂ and O atom is 1 : 2.
Hence,
moles of SO₂ = (moles of O atoms) / 2
= 3.8 mol / 2
= 1.9 mol
Hence, moles of SO₂ is 1.9 when there are 3.8 moles of O atoms.
