Answer: Argon ( Ar )
Explanation: This is element is silicon because it has 18 protons.
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Explanation :
Extraction : It is a separation technique in which one compound is separated from a mixture of compounds.
In a chemical process, the solution may not contain only the desired product but there maybe a mixture of products present.
So, for obtaining the desired product we need to get rid of the other products in a mixture like catalyst (if used), other by products or unreacted starting material.
For a compound to be extracted it has to be soluble in the extracting solvent.
Therefore, this process is based on the miscibility of solute and solvent in a mixture.
Answer:
The awnser is D
Explanation:
Since the black pieces absorb light better than white pieces, the white pieces will reflect light better. But since color doesn't affect sound, the sound waves are reflected the same.
