3 years ago

At 20 degrees C, how much sodium chloride could be dissolved into 2 L of water?

1 answer:

3 0

<span>35.89g of sodium chloride dissolves in 100g of water at 20 degrees celsius.
35.89 divided by 100 multiplied by 2000 = 718 g</span>

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strojnjashka [21]

Answer:

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Explanation:

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3 years ago

Could someone help me on #7?

ozzi

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53. A recently discovered planet has a mass four times as great as Earth's and a radius twice as large as Earth's. What will be

marusya05 [52]

Answer:

$g' = g = 9.81 m/s^2$

so gravity will be same as that of surface of earth

Explanation:

As we know that the acceleration due to gravity is given as

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here we have

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$R = 2R_e$

we know that for earth we have

$g = 9.81 = \frac{GM_e}{R_e^2}$

now if the radius and mass is given as above

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$g' = \frac{GM_e}{R_e^2}$

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3 years ago

A body of mass 50kg is placed on a wall of height 1.5m what is the potential energy

DiKsa [7]

Answer:

PE=mgh

=50×1.5×9.8

=735

Explanation:

need thanks and make me brainiest if it helps you

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3 years ago

Give in one word answer : <br>combination of cell in series

timofeeve [1]

Answer:

The combination of cells in which the negative terminal of a first cell is connected with the positive terminal of second cell and the negative terminal of a second cell is connected to the positive terminal of a third cell and so on is known as series combination of cells.

Explanation:

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3 years ago

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