3 years ago

Which sample is a pure substance?

Chemistry

2 answers:

Drupady [299]3 years ago

6 0

Answer:

a test tube of zinc and oxygen

Explanation:

i just did on edgen

Tema [17]3 years ago

3 0

A test tube of zinc oxide

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vlabodo [156]

Answer:

The functional group present in Cinnamon are : Aromatic , alkene , aldehyde

The functional group present in Almonds : Aromatic , aldehyde

The functional group present in DHA : Ketone , alcohol

Explanation:

Almond :

Chemical formula : $C_{7}H_{6}O$

It contain : A benzene ring (Aromatic) , a -CHO group (aldehyde)

Cinnamon Sticks :

Chemical Formula : $C_{9}H_{8}O$

It contain : A benzene ring (Aromatic) ,an alkene group (C=C) , a -CHO group (aldehyde)

DHA:

Chemical Formula : $C_{3}H_{6}O_{3}$

It contain : Alcohol group (-OH) , ketone group (C=O)

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