Najeark99 Najeark99

30-05-2017
Chemistry

contestada

Which is an element? ... air ...carbon dioxide ...hydrogen ...water Description

Respuesta :

30-05-2017

All Elements are obtained in the periodic table & water is Not an element it is a compound.

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JavierCollante JavierCollante

30-05-2017

The answer is Hydrogen.

Hydrogen can be found in the periodic table. There other choices are not element but compounds, which is a molecule made of more than ONE element.

Air is a mixture of gas molecules
Carbon dioxide is CO2
Water is H2O

So as you can see, they se al made of different elements

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