Mixtures and Solutions

Front

A mixture of three types of pasta would be easy to separate because all of the pastas--

Back

are solids

Front

Why do you have to shake oil and vinegar salad dressing before you can use it?

Back

Vinegar and oil have different densities.

Front

Theresa mixes a white powder into a beaker of water. The powder disappears. Why?

Back

solubility

Front

Definition: the ability to dissolve

Back

solubility

Front

How can we separate salt grains from pepper grains? Options: use a pair of tweezers, run a magnet through the mixture, put the mixture in water and filter out the pepper, use a strainer with a fine wire screen

Back

put the mixture in water and filter out the pepper

Front

Which list contains only substances that dissolve? Options: oil, sugar, pepper, sugar, salt, koolaid mix, sugar, oil, carrots, butter, carrots, cooking oil

Back

sugar, salt, koolaid mix

Front

Which property of the material wrapping the jars are they trying to investigate in this table?

Back

thermal energy insulation

Front

Paul evaporated a solution containing 15 grams of salt in 75 mL of water. How much salt is left behind?

Back

15 grams

Front

Is pepper soluble in water?

Back

No

Front

How do you know if a mixture is a solution?

Back

something in the mixture dissolved