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2 years ago

17. Elements in the periodic table are arranged according to their.

Chemistry

1 answer:

iren2701 [21]2 years ago

7 0

In the modern periodic table the elements are arranged in order of increasing atomic number.

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A solid mixture consists of 47.6g of KNO3 (potassium nitrate) and 8.4g of K2SO4 (potassium sulfate). The mixture is added to 130

IgorLugansk [536]

<u>Answer:</u> No crystals of potassium sulfate will be seen at 0°C for the given amount.

<u>Explanation:</u>

We are given:

Mass of potassium nitrate = 47.6 g

Mass of potassium sulfate = 8.4 g

Mass of water = 130. g

Solubility of potassium sulfate in water at 0°C = 7.4 g/100 g

This means that 7.4 grams of potassium sulfate is soluble in 100 grams of water

Applying unitary method:

In 100 grams of water, the amount of potassium sulfate dissolved is 7.4 grams

So, in 130 grams of water, the amount of potassium sulfate dissolved will be $\frac{7.4}{100}\times 130=9.62g$

As, the soluble amount is greater than the given amount of potassium sulfate

This means that, all of potassium sulfate will be dissolved.

Hence, no crystals of potassium sulfate will be seen at 0°C for the given amount.

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3 years ago

Which phase change temperatures are identical on the phase diagram? Select all that apply.

inna [77]

boiling point - condensation point

is the answer i would choose because it makes more scene

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2 years ago

Micronutrients can be classified based on the presence of ______ in their chemical structures. According to this classification

natali 33 [55]

Answer:

Carbon

Explanation:

Micronutrients include elements or groups needed by the body in order to survive. These elements or groups include vitamins and minerals. Micronutrients can be divided into four categories:

1. water-soluble vitamins

2. Fat-soluble vitamins

3. Macrominerals

4. Trace minerals

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The gas pressure inside a container decreases when which of the following happens? the number of molecules is increased and the

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<h2><em>can't understand your question..... can u explain me May </em><em>b</em><em>e</em><em> I can help u!</em></h2><h2 /><h2 />

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2 years ago

17. Elements in the periodic table are arranged according to their.​

17. Elements in the periodic table are arranged according to their.