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sergiy2304 [10]
3 years ago
5

En invierno, nieva en la cordillera.

Chemistry
1 answer:
Serggg [28]3 years ago
8 0
Que es el question que necesitas?
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What are essential elements in plants?​
madam [21]

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Chlorophyll is one. I can't quite remember other

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3 years ago
Choose the letter that best describes the behavior of a substance during a phase change:
velikii [3]

Answer:

/D/ either absorbs or releases energy

Explanation:

During a phase change energy is either absorbed or released.

A phase change is a reversible process which occurs when a substance changes is its state from one form to another.

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3 0
3 years ago
A student needed to dissolve a substance that she knew was soluble in water. according to the chart, which other solvent would m
Dmitry [639]
The chart is attached below and the options are as follow,

A Benzene

B Methanol

C Hexane

D Octane

Answer:
             Option-B (Methanol) is the correct answer.

Explanation:
                    As we know that the substance given to student is soluble in water. Therefore, those substances which are soluble in water are polar in nature because water is polar in nature and Like Dissolves Like.
                    Hence, in chart it can easily be seen that Methanol is also polar in nature due to presence of -O-H (polar) bond. So, the substance will dissolve in it.

8 0
3 years ago
The hydrogen halide gases all have the same general formula, HX, where X can be a halogen (F, CI, Br, or I). HCl 2 effuses times
Natali [406]

Answer:

Explanation:

We collected the gas over water; to obtain the true pressure of the gas, we have to correct for the vapor pressure of water. We look up the vapor pressure of water at 24 ºC: 24 torr. The pressure of the evolved gas is, therefore, 738 −24 = 714 torr. 2. We want the molar mass of the

8 0
3 years ago
The number of molecules in 1.0 mole of H2O is the same as in one mole of O2.
zaharov [31]
True. A mole of anything has the same amount of molecules. 1 mole = 6.022 x 1023 molecules 
8 0
4 years ago
Read 2 more answers
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