Respuesta :
air is NOT a compound - it is a mixture of different gases like O2, N2 n CO2. CO2 is a pure substance but NOT an element. so the CORRECT ans is
C) The chart shows the percentages of pure substances in a mixture.
air is NOT a compound - it is a mixture of different gases like O2, N2 n CO2. CO2 is a pure substance but NOT an element. so the CORRECT ans is
C) The chart shows the percentages of pure substances in a mixture.