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Which of the following equations shows a chemical change?
O NH3(g) → NH3(1)
O C3H8 +5023CO2 + 4H₂O
O C₂H5OH(1)→ C₂H5OH(g)
O H₂O(s)→ H₂O(g)

Respuesta :

It’s D.

Explaination:

(g) indicates that the substance is in a gaseous state. an alternative way of representing a substance in a gaseous state. (s) indicates that the substance is in a solid state.
So the chimicals are changing from a gas to a solid.
(always look at the letters in parentheses for these types of questions !!)

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hope this helped.

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