Answer:

Explanation:
Hello there!
In this case, according to the given information, it turns out possible for us to solve for the molarity of the KOH solution by knowing this base react in a 1:1 mole ratio with nitric acid, HNO3; thus, we can write the following equation, as their moles are the same at the endpoint:

Which in terms of molarities and volumes is:

Thus, we solve for the molarity of the base (KOH) to obtain:

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Answer:
<h2>10 m/s</h2>
Explanation:
Her average speed can be found by using the formula

d is the distance
t is the time taken
From the question we have

We have the final answer as
<h3>10 m/s</h3>
Hope this helps you
C. slight opposite charges
Explanation: opposites attract
Answer:
Er-144 -------> Dy-140 + He-4
Explanation:
Alpha decay is the release of a hydrogen nucleus. So the original atom will decrease the mass by 4 and the atomic number by 2.