A mixture of high denisty polpyropylene (i.e., CH2CH(CH3))n where n is the range

Question

A mixture of high denisty polpyropylene (i.e., CH2CH(CH3))n where n is the range of hundreds to thousands, iron(Fe), sand(SiO2), urea and napthalene "mothballs".
A) which components of the mixture are water soluble?
B) which of the solids making up the mixture you will be given are elements?
C) what substances other than silica might be a component of sand? A mixture of high denisty polpyropylene (i.e., CH2CH(CH3))n where n is the range of hundreds to thousands, iron(Fe), sand(SiO2), urea and napthalene "mothballs".
A) which components of the mixture are water soluble?
B) which of the solids making up the mixture you will be given are elements?
C) what substances other than silica might be a component of sand?
A) which components of the mixture are water soluble?
B) which of the solids making up the mixture you will be given are elements?
C) what substances other than silica might be a component of sand?

Explanation / Answer

A) depending on its solubility and non-aromatic character, the components soluble in water are Fe and urea.

B) iron is the only element present as it has pure atoms of that element. Others are compounds.

C) In my opinion, may be iron is the substance present in sand as sand is made up of quartz, silica and other incorganic specimens. Polypropylene, napthalene and urea are organic species so left is iron.

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