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morpeh [17]
3 years ago
5

In a solution of salt and water, if the concentration of salt molecules is greater outside a cell than inside, then water molecu

les will __________. . . . . . . . . . A. . move into the cell, and the cell will shrivel . . . . . . . . B. . move into the cell, and the cell will burst . . . . . . . . C. . move out of the cell, and the cell will shrivel . . . . . . . . D. . move out of the cell, and the cell will burst .
Chemistry
1 answer:
Katarina [22]3 years ago
4 0
The movement of salt molecules in a system and surroundings that have different concentrations follow the osmosis principle. Osmosis is the phenomena where molecules move from lower concentration to higher concentration through a sem-permeable membrane. when the concentration is higher outside, then answer is C. molecules <span>move out of the cell, and the cell will shrink or shrivel.</span>
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229.2 g of tin was heated from 46.3 to 115.7°C. How much energy was used to heat tin? (Specific heat capacity of Sn is 0.222 J/g
Dmitriy789 [7]

3531.23 J is the energy used to heat tin when 229.2 g of tin was heated from 46.3 to 115.7°C.

<h3>What is specific heat capacity?</h3>

The specific heat capacity is defined as the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases by 1 K (or 1 °C), and its units are J/(kg K) or J/(kg °C).

Q=mcΔT

Give data:

m=229.2 g

c=0.222 J/g x °C

ΔT=115.7°C - 46.3°C

ΔT= 69.4 °C

Putting value in the equation:

Q=mcΔT

Q=229.2 g x 0.222 J/g°C x 69.4 °C

Q= 3531.23 J

Hence, 3531.23 J is the energy used to heat tin.

Learn more about the specific heat capacity here:

brainly.com/question/27919379

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5 0
2 years ago
I need help ASAP... look at the picture:)
bogdanovich [222]

Answer:

its definitely A

Explanation:

hope this helps

6 0
3 years ago
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4) An atom of the element ____________has an average atomic mass of about 16 amu. A) oxygen B) sulfur C) nitrogen D) no elements
Nezavi [6.7K]

I take it your doing the IA? If so you should have a picture of elements above the question. Oxygen is the only one labeled with 16 as the atomic mass :)

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4 years ago
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What type of rock is a obsidian , marble, and a conglomentary rock
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Hi There!

Obsidian - Igneous Rock

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4 years ago
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Answer:

Decomposition.

Explanation:

It is decomposition, result is 2H2+O2, hope it is correct.

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3 years ago
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