Pre-Lab Separation of mixtures ws

What is the title of this lab?

• Separation of a Mixture

• Chemical Reactions

• Distillation

• Chromatography

What is one purpose of this lab?

• To separate the components of a mixture via filtration.

• To measure the boiling point of water.

• To observe chemical reactions.

• To study the effects of temperature on solubility.

Tags

NGSS.MS-PS1-2

Which of the following is NOT a material used in this lab? A) Weighing boats B) Slat (NaCl) C) Microscope D) Bunsen Burner.

• Weighing boats

• Slat (NaCl)

• Microscope

• Bunsen Burner

What is the purpose of using a Bunsen Burner in this lab?

• To heat substances

• To measure weight

• To filter mixtures

• To stir solutions.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What should you do immediately after all the water evaporates when using a Bunsen Burner?

• Turn off the flame

• Add more water

• Increase the flame

• Leave the flame on

Tags

NGSS.MS-PS1-4

What is the purpose of using filter paper in this lab?

• To separate solids from liquids

• To measure temperature

• To stir solutions

• To heat substances

What is the purpose of using a glass stirring rod in this lab?

• To stir solutions

• To measure weight

• To heat substances

• To filter mixtures

Which of the following is NOT a safety precaution mentioned in the lab? A) Using beaker tongs to remove hot beakers B) Wearing sandals C) Letting the ring stand cool down before returning it D) Tying hair back.

• Using beaker tongs to remove hot beakers

• Wearing sandals

• Letting the ring stand cool down before returning it

• Tying hair back

Which of the following materials is used to measure volume in this lab?

• Graduated cylinder

• Bunsen Burner

• Funnel

• Beaker tongs

What should you do with the ring stand before returning it?

• Let it cool down

• Heat it

• Submerge it in water

• Leave it on the flame.

Tags

NGSS.MS-PS3-3