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neonofarm [45]
4 years ago
10

A1br3 and 3K and 3K and 3KBr and A1 are an example of what reaction

Chemistry
1 answer:
Savatey [412]4 years ago
7 0

Answer:

It is an example of single displacement reaction.

Explanation:

<u>Single replacement reaction:</u>

A single element replaces another element in a compound.

For example,

AB+C\rightarrow A+BC

The given reaction is as follows.

AlBr_{3}+3K\rightarrow 3KBr+Al

In the above reaction, aluminium bromide is dissociated into the Al^{3+}and Br^{-} , these bromide ions are reacted with potassium atoms to form potassium bromide.

Here, only one element  displaces therefore, it is an single displacement reaction.

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The mass percent of hydrogen in CH₄O is 12.5%.

<h3>What is the mass percent?</h3>

Mass percent is the mass of the element divided by the mass of the compound or solute.

  • Step 1: Calculate the mass of the compound.

mCH₄O = 1 mC + 4 mH + 1 mO = 1 (12.01 amu) + 4 (1.00 amu) + 1 (16.00 amu) = 32.01 amu

  • Step 2: Calculate the mass of hydrogen in the compound.

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  • Step 3: Calculate the mass percent of hydrogen in the compound.

%H = (mH in mCH₄O / mCH₄O) × 100%

%H = 4.00 amu / 32.01 amu × 100% = 12.5%

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Learn more about mass percent here:brainly.com/question/4336659

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