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3 years ago

The diagram below shows a cell placed in a solution. What will happen to the cell?

Chemistry

1 answer:

drek231 [11]3 years ago

7 0

the cell will expand as water moves into it.

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Which color changes represent a positive reaction for the presence of starch using the iodine test?

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Looking at a ph level color chart, it should be moving to more acidic if it’s positive

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3 years ago

Hurry please!

Pani-rosa [81]

Answer : The mass of of water present in the jar is, 298.79 g

Solution : Given,

Mass of barium nitrate = 27 g

The solubility of barium nitrate at $20^oC$ is 9.02 gram per 100 ml of water.

As, 9.02 gram of barium nitrate present in 100 ml of water

So, 27 gram of barium nitrate present in $\frac{27g}{9.02g}\times 100ml=299.33ml$ of water

The volume of water is 299.33 ml.

As we know that the density of water at $20^oC$ is 0.9982 g/ml

Now we have to calculate the mass of water.

$\text{Mass of water}=\text{Density of water}\times \text{Volume of water}$

$\text{Mass of water}=(0.9982g/ml)\times (299.33ml)=298.79g$

Therefore, the mass of of water present in the jar is, 298.79 g

5 0

3 years ago

The metric system of units is known as

andre [41]

Answer:

International System of Units (SI)

Explanation:

I hope it helps :)

6 0

3 years ago

Sulfur,Iodine,.Carbon,Hydrogen put these lowest to highest

natima [27]

Answer:

The order is Hydrogen, Carbon, Sulfur, Iodine

Explanation:

According to the periodic table. The order is Hydrogen, Carbon, Sulfur, Iodine. You can search up an image of a periodic table, it will help you.

7 0

3 years ago

Which radioactive isotope is commonly used to date wooden artifacts?

sergey [27]

Carbon 14 because it has an approximate half life of 5000 years.

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3 years ago