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lubasha [3.4K]
3 years ago
9

How many elements are found in the following chemical equation? K + Cl → KCl A. 1 B. 2 C. 3 D. 0

Chemistry
2 answers:
Gnesinka [82]3 years ago
5 0
K is Potassium
Cl is Chlorine 
There are 2 elements.
Margaret [11]3 years ago
3 0

Answer: Option (B) is the correct answer.

Explanation:

An element is defined as a substance that contains same type of atoms.

For example, element K contains only atoms of potassium.

Whereas a substance in which two or more different elements chemically combine together in a fixed ratio by mass is known as a compound.

For example, KCl contains atoms of K and Cl in 1 : 1 ratio. Hence, it is a compound.

Therefore, in the chemical reaction, K + Cl \rightarrow KCl there are only two elements which are K and Cl.

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Answer:

I would expect to extract the acetic acid.

Explanation:

In the first step, since we are adding a concentrated acid,<u> it will react with the bases present in the mixture (diethylamine and ammonia) </u><u>forming salts</u><u>, </u><u>which are soluble in water</u>. Therefore, after draining the aqueous layer, we will have phenol and acetic acid left in the organic layer.

In the second step, we are adding a diluted base, so it will react with a strong acid. This compound is acetic acid, and its salt will be present in the aqueous layer. Phenol will be left on the organic layer.

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2 years ago
A 53. 5 mL ample of an 5. 4 % (m / v) KBr olution i diluted with water o that the final volume i 205. 0 mL Expre your anwer to t
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We are aware that concentration and volume are related to each other by the formula -

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Keep the values to calculate final concentration.

C_{2} = (53.5 × 5.4)/205.0

Performing multiplication on Right and Side

C_{2} = 288.9/205.0

Performing division on Right Hand Side

C_{2} = 1.4%

Hence, the final concentration is 1.4%.

Learn more about concentration -

brainly.com/question/17206790

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The complete question is -

A 53.5 mL sample of an 5.4 % (m/v) KBr solution is diluted with water so that the final volume is 205.0 mL.

Calculate the final concentration and express your answer to two significant figures and include the appropriate units.

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here

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