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3 years ago

7

Luster, hardness, color, size, and temperature are all examples of

1 answer:

sergij07 [2.7K]3 years ago

5 0

Answer:

i believe it's D

Explanation:

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A 3.20 g sample of a salt dissolves in 9.10 g of water to give a saturated solution at 25°C. a. What is the solubility (in g sal

muminat

Answer:

The solubility of the salt is 35.16 (g/100 g of water).

It would take 71.09 grams of water to dissolve 25 grams of salt.

The percentage of salt that dissolves is 52.7 %

Explanation:

<h3>a.</h3>

We know that 3.20 grams of salt in 9.10 grams of water gives us a saturated solution at 25°C. To find how many grams of salt will gives us a saturated solution in 100 grams of water at the same temperature, we can use the rule of three.

$\frac{3.20 \g \ salt}{9.10 \ g \ water} = \frac{x \ g \ salt}{100 \ g \ water}$

Working it a little this gives us :

$x = 100 \ g \ water * \frac{3.20 \g \ salt}{9.10 \ g \ water}$

$x = 35.16 \ g \ salt$

So, the solubility of the salt is 35.16 (g/100 g of water).

<h3>b.</h3>

Using the rule of three, we got:

$\frac{3.20 \g \ salt}{9.10 \ g \ water} = \frac{25 \ g \ salt}{x \ g \ water}$

Working it a little this gives us :

$x = \frac{25 \ g \ salt}{ \frac{3.20 \g \ salt}{9.10 \ g \ water}}$

$x = 71.09 g \ water$

So, it would take 71.09 grams of water to dissolve 25 grams of salt.

<h3>C.</h3>

Using the rule of three, we got that for 15.0 grams of water the salt dissolved will be:

$\frac{3.20 \g \ salt}{9.10 \ g \ water} = \frac{x \ g \ salt}{15.0 \ g \ water}$

Working it a little this gives us :

$x = 15.0 \ g \ water * \frac{3.20 \g \ salt}{9.10 \ g \ water}$

$x = 5.27\ g \ salt$

This is the salt dissolved

The percentage of salt dissolved is:

$percentage \ salt \ dissolved = 100 \% * \frac{g \ salt \ dissolved}{g \ salt}$

$percentage \ salt \ dissolved = 100 \% * \frac{ 5.27\ g \ salt }{ 10.0 \ g \ salt}$

$percentage \ salt \ dissolved = 52.7 \%$

3 0

4 years ago

Read each scenario and then answer the question. Scenario A: A 6-kg bucket is raised a distance of 6 m. Scenario B: A 9-kg bucke

MAXImum [283]

Answer:

Scenario C: A 12-kg bucket is raised a distance of 4 m.

Explanation:

I just took the quiz and that's the correct answer

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3 years ago

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You observed three different star clusters and found that the main-sequence turnoff stars in cluster 1 had spectral type A, the

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Answer: Cluster 3 (D)

Explanation: Cluster 3 is the oldest and it could be the source from which cluster 2 and 3 got their spectral type from.

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4 years ago

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Which model could represent a neutral atom of nitrogen?

Semmy [17]

Answer:

In the Bohr model, a nitrogen atom has a central nucleus, composed of seven protons and seven neutrons, surrounded by seven electrons

Explanation:

thank me later

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3 years ago

Types of mechanical waves include

USPshnik [31]

I think surface waves

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4 years ago