Question

consider two substances: substance a is soluble in a range of temperatures and substance b is only soluble in hot water. when temperature is low and the two are mixed together, they will most likely create a __ mixture; when temperature is high and two are mixed together, they will most likely create a __ mixture. homogeneous; heterogeneous heterogeneous; homogeneous

Explanation:

• At low temperature: Substance A is soluble, but Substance B (only soluble in hot water) is not. So, the mixture will have visible differences (Substance B not dissolved), making it heterogeneous.
• At high temperature: Both Substance A (soluble in a range of temperatures) and Substance B (soluble in hot water) are dissolved. A mixture where components are uniformly distributed is homogeneous.

Answer:

heterogeneous; homogeneous