Solutions and rate of solubility

Which would dissolve faster?

• stirring sugar and water 30 times per minute

• stirring sugar and water 10 times per minute

Which would dissolve faster?

• crushed up, tiny pieces of sugar

• sugar cube

When substances are mixed together, they retain their physical properties.

• True

• False

Tags

NGSS.MS-PS1-2

Physical properties of a substance can be used to separate mixtures?

• True

• False

Which of the following will dissolve at the fastest rate?

• 15 g of sugar cubes in 120 g of water at 60^oC

• 15 g of sugar cubes in 120 g of water at 20^oC

• 15 g of crushed sugar in 120 g of water at 60^oC

• 15 g of crushed sugar in 120 g of water at 20^oC

Tags

NGSS.HS-PS1-5

Which type of mixtures is evenly mixed throughout? (a)  

• Homogeneous mixtures
• Heterogeneous mixtures

Match the following

• Liquid with a uniform composition

• solution

• substance being dissolved

• solvent

• substance doing the dissolving

• solute

Identify the parts of a homogeneous mixture of salt water:

- Salt: ​ (a)  

-Water:​ (b)  

-Salt water mixture: ​ (c)  

• solute
• solvent
• solution

Which substance is considered the universal solvent?

• oil

• water

• salt

• vinegar

• bleach