Answer:
Explanation:
Hello,
In this case, since the rate equation turns out as shown below due to the first-order kinetics:
Its integration results:
However, the rate constant is computed by considering the given half-life time as follows:
In such a way, the required time in minutes to diminish the concentration by 66.8% of the initial turns out:
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This is because of the increasing number of protons in the nucleus, resulting in a stronger attraction of the electrons with the nucleus.
The scenario that contains an exact number is 'A) You count 10 people in a room' (Option A).
<h3>What is the exact number?</h3>
An exact number can be considered a discrete variable because it does not involve a continuous range of values in a given measurement.
In conclusion, the scenario that contains an exact number is 'A) You count 10 people in a room' (Option A).
Learn more about discrete variables here:
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Electronegativity is determined by factors like the nuclear charge
Answer: Combustion is also known as burning, and the substance that burns is usually referred to fuel. The products of a complete combustion reaction include carbon dioxide (CO2) and water vapor (H2O).
Explanation:
