Mixtures and Solutions requiz

Multiple Choice

Combination of two or more different kinds of substances that keep their own physical properties and can be easily separated.

• Solution

• Mixture

• Solubility

• Miscibility

Multiple Choice

This is a type of mixture where one substance dissolves into another:

• Solution

• Miscibility

• Compound

• Solubility

Multiple Choice

Which property cannot be used to separate the objects into 2 different groups?

• Magnetisim

• Mass

• Electrical Conductivity

• Solubility in water

Solutions:

-one substance spreads out evenly into another (dissolves)
-Properties of ingredients change

-difficult to separate/ Must use energy

​Class Examples:

Multiple Choice

Which set of ingredients make a solution?

• Oil and lemonade

• Raisins and oatmeal

• Salt and pepper

• Salt and 

  apple juice

Multiple Choice

Solutions are different than Simple mixtures because

• one of the ingredients dissolves in the other.

• none of the ingredients dissolve.

Multiple Select

Oil does not dissolve in water! Which of the following form solutions:

• Lemon Juice and water

• Honey and water

• Hot cocoa mix and water

• Sand, gravel and beads

• Sugar and salt

Multiple Choice

If you start with 25 grams of koolaid powder dissolved in water, how much would be left if only the water evaporated?

• None of it

• some of it

• most of it

• all of it

Multiple Choice

   A science class performed an investigation by evaporating a solution containing 10 grams of salt and 50 milliliters of water. How much salt would you expect to find in the cup at the end of the investigation?

• 60 grams

• 50 grams

• 10 grams

• 0 grams

Multiple Choice

What happens to sugar when placed in hot water?

• it dissolves

• it becomes a liquid and floats

• it does not dissolve

• it becomes a liquid and sinks

Multiple Choice

What happens to carrots when placed in hot water?

• it dissolves

• it becomes a liquid and floats

• it does not dissolve

• it becomes a liquid and sinks

Multiple Choice

What happens to salt when placed in hot water?

• it dissolves

• it becomes a liquid and floats

• it does not dissolve

• it becomes a liquid and sinks

Multiple Choice

What happens to butter when placed in hot water?

• it dissolves

• it becomes a liquid and floats

• it does not dissolve

• it becomes a liquid and sinks

Multiple Choice

What happens to cooking oil when placed in hot water?

• it dissolves

• it is a liquid and floats

• it freezes

• it is a liquid and sinks

Multiple Select

Which 3 tools can separate gravel from water?

• Hot plate

• Magnet

• Filter Paper

• Tweezers

Multiple Choice

If someone poured powders into equal amounts of water and watched how they mixed, what property are they observing?

• Temperature

• amount of water needed to dissolve

• density (sink/float)

• Solubility (if they dissolve)

Multiple Choice

A student adds 10 grams of four different powdered solids into four different beakers. The student then adds 100 mL of water to each beaker, stirs the mixtures, and allows them to sit for half an hour before recording observations. Which question is the student most likely trying to answer with this investigation?

• At what water temperature do the substances dissolve?

• How much water is needed to cause a substance to change state? 

• What causes a substance to sink when put in water?

• Which substances dissolve in water?