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defon
2 years ago
13

If an element has a charge of 2+, how many more protons does it have than electrons?

Physics
2 answers:
yulyashka [42]2 years ago
6 0
<span>If an element has a charge of 2+, It has 2 more proton than electrons</span>
Shtirlitz [24]2 years ago
5 0

Answer:

Explanation:

If a body loses some electrons, it becomes positively charged.

Here element having charge + 2 unit, it means the two electrons are removed from the element.

As we know that the atom is electrically neutral, it means the number of protons is equal to the number of neutrons.

So, if two electrons are removed, it means the now, the number of protons are two more than the number of electrons.

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Consider the following situations: i. A ball moving at speed v is brought to rest ii. The same ball starts at rest and is projec
tatyana61 [14]

Answer:

c. Case iii

Explanation:

the ball will experience the largest change in case iii

3 0
3 years ago
Think Critically Suppose your teacher gave you a slide of an unknown cell. How would you tell whether the cell was from an anima
topjm [15]

Answer:

You will be able to tell whether the unknown cell is from an animal or from a plant through the knowledge of difference between plants and animal cells.

Explanation:

A cell can be defined as the simplest bit of living matter which exhibits a variety of shapes and sizes and that can exist independently.

When a slide of an unknown cell is studied under a microscope, different cell structures would be observed which would be used to conclude if the cell on the slide is a plant or animal cell.

The following features are observed in a plant cell:

--> cellulose cell wall is present

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--> Centriole is absent

The following features are observed in animal cell:

--> Cellulose cell wall is absent

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--> Small vacuoles is present

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The difference between a plant and an animal cell can be seen from the features above and a clear knowledge of this will help the student tell whether the unknown cell is from an animal or from a plant.

4 0
2 years ago
Which system works with the respiratory system for the exchange of gases to take place?
zvonat [6]

Answer:

Circulatory System

Explanation:

The respiratory system works with the circulatory system to provide tis oxygen and to remove the waste products of metabolism. It also helps to regulate PH of the blood. Respiration is the sequence of events that result in the exchange of oxygen and carbon dioxide between the atmosphere and the body cells.

7 0
2 years ago
a. Find the magnitude of the gravitational force (in N) between a planet with mass 6.50 ✕ 1024 kg and its moon, with mass 2.45 ✕
Vanyuwa [196]

Answer:

a. 1.70\times 10^{20} N b. 6.94\times 10^{-3}m/s^2 c. 2.62\times 10^{-5} m/s^2

Explanation:

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F= G\frac{Mm}{r^2}

Use values given to have the results.

b.

g=\frac{F}{m}

Use m as the mass of the Moon. Using values of a. and m you have the answer.

c.

g = \frac{F}{M}

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3 0
3 years ago
Axit amin có chức năng gì sau đây
alexandr402 [8]

Answer:

i dont understand sorry

7 0
2 years ago
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