Answer: They cannot be broken down any further
Answer:
True
Explanation:
The given statement is true.
A scientific model is defined as the mathematical and physical representation of a process or event. Scientists perform several observations or experiment and find a connection between them to prove a scientific finding.
A scientific model has the ability of explanatory power which helps to make things easier to understand using diagrams and consistency across contexts. Testing and prediction power in scientific models leads to strong predictions and able to convince people using an appropriate model.
Hence, the correct answer is "true".
Answer is: the
molar mass of unknown molecular compound is 245.67 g/mol.
<span>m(compound) = 5.65 g.
m(benzene) = 110 g ÷ 1000 g/kg = 0.11 kg.
ΔT = 5.45°C - 4.39°C.</span>
ΔT = 1.06°C.
Kf(benzene) = 5.07°C/m.
<span>M(compound) = Kf
· m(compound) / m(benzene) · ΔT.
M(compound)= 5.07°C/m · 5.65 g / (0.11 kg · 1.06°C).
M(compound) = 245.67 </span>g/mol.
Major product is cis-2-butene.
You may find the structure in the attached picture.
Explanation:
In the presence of Lindlar catalyst the 2-butyne is hydrogenated to cis-2-butene (major product).
The chemical reaction is illustrated in the attached picture.
Learn more about:
hydrogenation
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Answer:
THE FRACTION OF IODINE-125 REMAINING AFTER 360 DAYS IS 1/64.
Explanation:
half life of iodine- 125 = 60 days
Time elapsed for a decay = 360 days
using the formula:
Nt = No (1/2)^t/t1/2
The fraction left after a decay will be represented as:
Nt / No = (1/2) ^t/t1/2
Nt / No = (1/2) ^ 360 /60
Nt / No = (1/2) ^6
Nt / No = 1 / 64
The fraction of iodine-125 (Nt / No) remaining after 360 days is 1/ 64.
