Answer:
A- compound
D- homogenous mixture
B- compound
E- Compound
C- Pure substance
F- heterogenous mixture
Step-by-step explanation:
A- Ch4 which is Methane is a one-carbon compound
D- Salt water is homogenous because salt is mixed with water and it has a uniform composition throughout
B- It is an elemental sulfur and a (homomonocyclic) compound
E- Ch2o is methanol which is an organic compound
C- Water is made up of hydrogen and oxygen and is pure
F- concrete is heterogenous because it is made of water and cement (powder sometimes mixed together) which is not always uniform throughout