Question

CO2 is also known as dry ice why

Answer 1

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Here is your answer
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Solid carbon dioxide is known as dry ice. It looks like ices and because when it melts, it direct goes into the gaseous state from the solid state, without going through the liquid state that is why it is known as dry ice.

Answer 2

Solid CO2 is known as dry ice. Because it looks like ice and because when it melts it goes from solid straight to gas , no liquid, hence dry ice.