Author Question: A mixture of iron, salt and sand can be separated using a magnet, water, a filter and a hot plate. ... (Read 66 times)

sc00by25 · **on:** Aug 27, 2018

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.

Question 2

How many grams of water are in 100 g of a 30 percent-by-mass sugar solution?

A) 30 g
B) 60 g
C) 70 g
D) 100 g