Question

Determine whether each sample of matter is chemically homogeneous or chemically heterogeneous, and whether it is physically homogeneous or physically heterogeneous.

Pure water

Pure water and ice

Tap water

River water

Oil and vinegar salad dressing

Blood

Answer 1

Chemically homogeneous:

Pure water

Pure water and ice

Chemically heterogeneous:

Tap water

River water

Oil and vinegar salad dressing

Blood

Physically homogeneous:

Pure water

Tap water

Blood

Physically heterogeneous:

Pure water and ice

River water

Oil and vinegar salad dressing