Answer:

1.Orange juice is MIXTURE

2.halo - halo is MIXTURE

3.Carbon atom is PURE SUBSTANCE

4.steel is MIXTURE

5.Sugar is PURE SUBSTANCE

Reasons;

1. Orange juice - is mixture because it consist of different substances that combine without a fixed proportion.
2. Halo - halo - is mixture because it has different ingredients
3. Carbon atom - is pure substance because it cannot be broken down into different types of subtances.
4. Steel - is mixture because steel is made from two elements ; Iron and Carbon.
5. Sugar - is pure substance because it is composed of a compound .

HOPE I HELPS