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Sedaia [141]
3 years ago
14

The isotope of an atom containing 31 protons and 39 neutrons suddenly has two neutrons added to it. What isotope is create?

Chemistry
1 answer:
KatRina [158]3 years ago
7 0
The answer is gallium-72
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The correct answer is B. on Apex!

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With a force of 5 newtons, Amanda pushes the stack of books to the right. At the same time, Jeremy, her little brother, pushes t
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Answer:

A.  5 N to the left

<em>Note: The question is incomplete. The complete question is given below:</em>

<em>With a force of 5 newtons, Amanda pushes the stack of books to the right. At the same time, Jeremy, her little brother, pushes the stack of books to the left with a force of 10 newtons. </em>

<em>What is the direction and magnitude of the resulting force? </em>

<em>A.  5 N to the left </em>

<em>B.  5 N to the right </em>

<em>C.  10 N to the right </em>

<em>D.  10 N to the left </em>

Explanation:

Forces are vector quantities.

Vector quantities are quantities that can be represented both in magnitude and direction.

Forces have both magnitude and direction. Forces can be directed positively or negatively.

For example, in the question above, if forces acting to the right are considered to be in the positive direction, forces acting to the left are considered to be acting in a negative direction.

In the addition of forces, both their magnitude and direction are taken into consideration.

In the example above, taking forces acting to the right as positive and to the left as negative, the sum of the forces is:

Resultant force, F = (5 N) + (-10N)

F = -5 N

Therefore, the net force is 5 N and is directed towards the left

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Unstable isotopes undergo radioactive decay. what occurs during radioactive decay?
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Here is what radioactive decay is:
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Answer:

115.2 °C since melting point is an intensive property  

Step-by-step explanation:

The melting point of a substance does not depend on how much you have.

For example, the melting point of water is 0 °C, whether it is an ice cube from the refrigerator or in the frozen pond outside.

The freezing point of a substance is an <em>intensive property</em>.

Thus, the melting point of 100 g of sulfur is 115.2 °C because melting point in an intensive property.

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How can we tell when something is polar or non-polar in an Inter-molecular Force?
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If the substance mixes with water it's polar. If it doesn't it ms non polar.
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