When two substances that cannot dissolve each other are mixed, a colloids mixture is formed. A heterogeneous mixture that has very small dispersed particles and stays mixed for a long time is a suspencion . A heterogeneous mixture that has larger dispersed particles that settle over time is a

Which of the following is not a common characteristic of agricultural villages throughout the world?

24-karat gold is considered to be pure gold. 18-karat gold is considered to be about 75% gold. what is 18-karat gold considered a mixture rather than a pure substance? a) it has a variable composition of other elements and minerals. b) its color is different than pure gold. c) the gold atoms are not arranged in a repeating pattern. d) it can be melted and transformed into a different substance.

Throughout united states history, new groups of people have been given voting rights. this usually occurs through