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aniked [119]
3 years ago
14

(h) The student made observations related to the contents of the Erlenmeyer flask during the titration. Identify an observation

that could have led the student to conclude that a chemical change took place during the titration.
Chemistry
1 answer:
katen-ka-za [31]3 years ago
5 0

Answer:

Explanation:

During titration indicators are often used to identify chemical changes between reacting species.

For colorless solutions in which no noticeable changes can easily be seen, indicators are the best bet. Most titration processes involves a combination of acids and bases to an end point.

Indicators are substances whose color changes to signal the end of an acid-base reaction. Examples are methyl orange, methyl red, phenolphthalein, litmus, cresol red, cresol green, alizarin R3, bromothymol blue and congo red.

Most of these indicators have various colors when chemical changes occur.

Also, there are heat changes that accompanies most of these reactions. These are also indicators of chemical changes.

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CaHeK987 [17]

Answer:

76.875 cm3

<h2>Explanation:</h2>

Since: Density = \frac{Mass}{volume\\}

Then: Volume = \frac{Mass}{Density\\}

The mass of the box = 246g

and the density = 3.2 g/cm3

Then: The volume = \frac{246}{3.2}

= 76.875 cm3

4 0
3 years ago
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balu736 [363]
K(eq) = concentration of products/concentration of reactant         = [Cu+2] / [Ag+]^2 
Activity of pure solid and liquid is taken as 1.
Hence last option is correct.
Hope this helps, have a great day ahead!
I hope this helps you alot
:)
:)
:0

4 0
3 years ago
Read 2 more answers
What happened during the Renaissance that encouraged progress in the study of matter?
lukranit [14]

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Yesterday I drove 150 minutes at a speed of 100 miles/hr. How many miles did I drive?
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6 0
2 years ago
In the kinetic molecular theory of gas behavior, the assumption is made that gas molecules:.
neonofarm [45]

Answer:

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Explanation:

4 0
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