Which shows the solids from lowest to highest melting points carbon dioxide -78.5 melting point hexane -95.3 melting point ethanol -114 melting point

Answer 1

To arrange the substances based on their melting points from lowest to highest, we need to compare the melting points of each:

• Hexane: melting point of -95.3 °C
• Ethanol: melting point of -114 °C
• Carbon dioxide: melting point of -78.5 °C

Now, we can order them:

1. Ethanol: -114 °C (lowest melting point)
2. Hexane: -95.3 °C
3. Carbon dioxide: -78.5 °C (highest melting point)

So, the order from lowest to highest melting point is:

Ethanol < Hexane < Carbon dioxide