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qaws [65]
4 years ago
14

An open flask is half filled with water at 25°C.

Chemistry
1 answer:
anygoal [31]4 years ago
4 0
<span>An open flask is half filled with water at 25 degrees Celsius. Phase equilibrium can be reached after the flask is stoppered. Equilibrium is defined as a state of balance or a stable situation where opposing forces cancel each other out and where no changes are occurring. Thermodynamics is usually subdivided into a theory dealing with equilibrium and into one concerned with irreversible process. </span>
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I need help!!!! Plz help me with the above question
maksim [4K]
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4 0
3 years ago
How can I identify a salt compound is acidic,basic,neutral​
Luden [163]

Salts that are from strong bases and strong acids do not hydrolyze. Salts that are from strong bases and weak acids do hydrolyze, which gives it a pH greater than 7.  Salts of weak bases and strong acids do hydrolyze, which gives it a pH less than 7.

7 0
3 years ago
The molar mass of vitamin A (C20H30O).
vivado [14]
Molar mass of C:  12.011 g/mol
The equation says C20, which means there are 20 carbon atoms in each molecule of Vitamin A.  So, we multiply 12.011 by 20 to get 240.22 g/mol carbon.

Molar mass of H:  1.0079 g/mol
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Molar mass of O: 15.999 g/mol
The equation says O without a number, which means there is only one oxygen atom in each molecule of Vitamin A.  So, we leave O at 15.999 g/mol.

Then, just add it up:
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So, the molar mass of Vitamin A, C20H30O, is approximately 286.5 g/mol.
4 0
3 years ago
Which statement indicates that a substance may be an ionic compound?
lapo4ka [179]
If it has a metal and a nonmetal. Not sure if this helps, but I hope it does :)
3 0
3 years ago
Name the following compound with a polyatomic ion: Na₂SO₄ *
Helga [31]

Answer:

sodium sulfate

Explanation:

For naming an ionic compound with polyatomic anion, the metal is written first using its element name followed by name of the polyatomic anion. Therefore, the compound with Na+Na+ cation and SO2−4SO42− anion is named as sodium sulfate.

6 0
3 years ago
Read 2 more answers
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