CBA Review HONORS

What is an example of a pure substance?

• element

• solution

• homogeneous mixture

• heterogeneous mixture

Tags

NGSS.MS-PS1-4

What is an example of a pure substance?

• compound

• solution

• homogeneous mixture

• heterogeneous mixture

Tags

NGSS.MS-PS1-4

Which is an example of a mixture?

• beach sand

• oxygen

• water

• gold

How can you tell a chemical change happened?

• a new substance is formed

• the substance changed state

• the substance changes temperature

• the substance releases energy

Tags

NGSS.MS-PS1-2

A student mixed lemonade powder with water and stirred until the powder dissolved. Which statement is true about the mixture?

• Lemon powder is the solution, water is the solute and lemonade is the sovent.

• Lemon powder is the solute, water is the solvent and lemonade is the solution.

• Lemon powder is the solvent, water is the solution and lemonade is the solute.

• The mixture is a pure substance.

What happens when lemonade becomes diluted?

• More water is added and the solution becomes paler in color.

• More water is added and the solution becomes darker in color.

• Water is removed and the solution becomes darker in color.

• Water is removed and the solution becomes paler in color.

Which of the following will increase the rate of dissolution? (Multiple right answers).

• crushing

• increasing temperature

• stirring

• evaporating

You want to dissolve a sweet tart in your water. What can you do to speed up the rate of dissolution?

• You can crush the sweet tart.

• You can heat up the water.

• You can stir the solution.

• You can add more sweet tarts.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In Kool Aid, what is the SOLVENT?

• water

• Kool Aid powder

• the Kool Aid drink

• the beaker the Kool Aid is in

In Kool Aid, what is the SOLUTE?

• the water

• the Kool Aid powder

• the Kool Aid drink

• the beaker the Kool Aid is in