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matrenka [14]
3 years ago
13

Identify each item as either an element or a compound. carbon (C) carbon dioxide (CO2) hydrogen (H) sodium chloride (NaCl)

Biology
2 answers:
GREYUIT [131]3 years ago
5 0

Answer:

Carbon-element

Carbon dioxide-compound

Hydrogen-Element

Sodium chloride-Compound

Explanation:

Element:It is a substance whose atoms all have the same number of protons.

It is chemically simplest substance and it can not be broken in smallest particle by chemical reactions.

Compound:It is  substance which  consist of two or more than two elements.

1.Carbon (C)

Using definition of element

Carbon is an element.

2.Carbon dioxide

Carbon dioxide is  a compound because it consist of carbon and oxygen .

3.Hydrogen

It is an element because it cannot be broken down in small particles by chemical reaction.

4.NaCl

It is a compound because it consist of sodium and  Cl -atom

Studentka2010 [4]3 years ago
3 0
Carbon- element
Carbon dioxide- compound
Hydrogen- element
Sodium- element
Sodium chloride- compound
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