Thou Shalt Not Forget Unit 0

What method separates mixtures based on differences in particle size?

• Distillation

• Chromatography

• Filtering

• Mass conservation

In paper chromatography, which component moves up the farthest?

• The component most similar in polarity to the mobile phase

• The component least similar in polarity to the mobile phase

• The heaviest component

• The lightest component

What is conserved during chemical and physical changes?

• Volume

• Mass

• Polarity

• Boiling point

Which of the following is the correct formula for density?

• Density = mass/volume

• Density = volume/mass

• Density = mass x volume

• Density = mass + volume

What is the formula for % yield?

• (experimental/theoretical)

• (theoretical/experimental)

• (experimental - theoretical)/theoretical

• (theoretical - experimental)/experimental

What determines the amount of product for a reaction?

• The excess reactant

• The limiting reactant

• The temperature

• The pressure

What type of change separates a compound into elements?

• Physical Change

• Chemical Change

• Both

• Neither

In paper chromatography, if water is used as the “mobile phase”, what kind of substance will move up the farthest?

Always read a graduated cylinder...

• from eye level

• the highest number possible showing moisture

• looking down into the cylinder

• blindfolded.