A mixture of iron, salt and sand can be separated using a magnet, water, a filter and a hot plate. Think about this separation. The separation of this mixture
A. uses only physical changes or processes.
B. uses only chemical changes or processes.
C. uses both chemical and physical changes or processes.
D. cannot be done with the materials listed.
Answer:A
A mixture of iron, salt and sand can be separated using a magnet, water, a filter and a hot plate. Think about this separation. The separation of this mixture
A. uses only physical changes or processes. B. uses only chemical changes or processes. C. uses both chemical and physical changes or processes. D. cannot be done with the materials listed.