A buffer is a solution which resists changes to it pH when a small quantity of acid or base is added to it.
<h3>What is a buffer?</h3>
A buffer is a solution which resists changes to it pH when a small quantity of acid or base is added to it.
Buffers are made from solutions of weak acids and their salts or weak bases and their salts.
<h3>What is pH?</h3>
The pH of a solution is the negative logarithm to base 10 of yhe hydrogen ion concentration of the solution.
Solutions of low pH have high concentration of hydrogen ions while solutions of high pH have high hydrogen ion concentration.
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The alcohol has an oxygen atom single-bonded to hydrogen and single-bonded to a carbon-containing group.
<h3>What is alcohol? </h3>
Alcohol is defined as the organic compound which is derived from an hydrocarbon by replacing one hydrogen by hydroxyl group(—OH).
The general formula of alcohol is ROH.
where, R is the alkyl group.
The first member of alcohol is ethanol.
<h3>Physical properties of alcohol</h3>
- Alcohols are colourless.
- They give a sweet smell except for glycerol and few lower alcohols.
- They are flammable and produce a blue flame on burning.
- They don't produce any kind of smoke while burning.
- Alcohol are liquid at room temperature.
Thus, alcohol is an organic compound which contain an oxygen atom which is single-bonded to hydrogen and single-bonded to a carbon-containing group.
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Answer:
buring of paper, burning of wood etc are the examples of chemical change
Here we assume that disintegration has occur so the normal t½ formular will not be used
mathematically we..⅛×5600 =700
therefore it is about 700years option A
To go back on the text and get your answer also if u are not in this grade in 4th and 5th grade they taught race so just use that trace stands for
R-restate your answer
A-answer al parts of your question
C-Cite your evidence
And
E-extend and or explain hope this helps
