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tester [92]
3 years ago
6

Identify the compound whose solubility decreases with increasing temperature.

Chemistry
1 answer:
Veronika [31]3 years ago
5 0

Answer is: Na₂SO₄ (sodium sulfate).

The solubility of sodium sulfate increases up to 32.38°C and than decreases at higher temperatures, the solubility becomes almost independent of temperature.

At 32.38°C it releases of crystal water and melting of the hydrated salt.

Sodium sulfate is the white, inorganic compound.

Sodium sulfate is highly soluble in water.

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Which statement describe molecules?
antoniya [11.8K]

Answer:

A group of atoms bonded together by different chemical reactions. It is the smallest fundamental unit of a chemical compound.

Explanation:

6 0
3 years ago
Read 2 more answers
An air mass usually forms in an area of _____. low pressure because it's stable low pressure because it's unstable high pressure
horsena [70]

Answer: high pressure because it's stable

Explanation:

Air mass is volume of air which has stable temperature, humidity and pressure horizontally. Over time, each air mass acquires properties of the region by residing over same part of a surface.

Areas of low pressure and high pressure occur where there is warm air and cold air respectively. An air mass usually forms over an area of high pressure. Warm air rises up and cold air takes its place. Warm air has low density and low pressure where as cold air has high density and pressure and therefore, sinks to the bottom. This is a stable condition.  The movement of air mass is responsible for maintenance of temperature conditions on Earth.

6 0
3 years ago
A sample containing 16.93 metal pellets is poured into a graduated cylinder containing 11.2 of water, causing the water level in
mixer [17]

Answer:

<h3>The answer is 1.99 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question

mass = 16.93 g

volume = final volume of water - initial volume of water

volume = 19.7 - 11.2 = 8.5 mL

We have

density =  \frac{16.93}{8.5}  \\  = 1.9917647058...

We have the final answer as

<h3>1.99 g/mL</h3>

Hope this helps you

7 0
3 years ago
true or false electrical energy is the amount of energy that contains an object due to the kinetic energy?​
yuradex [85]

The answer to this question would be true.

4 0
2 years ago
A sucrose packet contains 4.0g sucrose C12H22O11, how many moles of sucrose does the packet contain?
SpyIntel [72]

Answer:

And we have to calculate the number of moles of sucrose present in a lb mass of sucrose: Moles of sucrose=454⋅g342.30⋅g⋅mol−1=1.33⋅mol .

Explanation:

<u>Brainliest</u><u> </u><u>Answer </u><u>Pls</u>

8 0
2 years ago
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