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Liono4ka [1.6K]
3 years ago
5

As Mia mixed two substances in a test tube, she noticed that the test tube became warm. She also noticed gas coming from the tes

t tube. Based on Mia's observations, what was most likely occurring inside the test tube?
A.The two substances underwent a physical change
B.The two substances were melting
C.A new substance was forming
D.A change in the mass of the two substances
Chemistry
1 answer:
ss7ja [257]3 years ago
8 0

Answer:

a new substance was forming

Explanation:

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Why the ph of glycine increases when 0.1 M NaOH is added dropwise​
shtirl [24]

Answer:

The acid-base reaction produces glycine reduction, and hence the increase of glycine pH.

Explanation:

The glycine is an amino acid with the following chemical formula:

NH₂CH₂COOH  

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Hence, when NaOH is added to glycine an acid-base reaction takes place in which COOH reacts with the NaOH added:

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The glycine concentration starts to shift to its ion form (NH₂CH₂COO⁻) because of the reaction with NaOH, that is why the pH glycine increases when NaOH is added.  

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7 0
3 years ago
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4 years ago
Using the van der Waals equation, the pressure in a 22.4 L vessel containing 1.00 mol of neon gas at 100 °C is ________ atm. (a
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Answer:

The answer to your question is        P = 1.357 atm

Explanation:

Data

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1 mol

temperature = 100°C

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Convert temperature to °K

Temperature = 100 + 273

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Formula

               (P + \frac{a}{v^{2}} )(v - b) = RT

Substitution

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Simplify

               (P + 0.0094)(22.3829) = 30.586

Solve for P

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                           P + 0.0094 = 1.366

                                 P = 1.336 - 0.0094

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