Chm138 Exam 4 Review

An aqueous mixture containing starch(a colloid), NaCl, glucose, and albumin (a colloid) is placed in a dialyzing bag and immersed in distilled water. Which of the following correctly describes the location of the indicated substance after dialysis.

• Water inside only

• starch outside

• albumin inside & outside

• albumin inside

Which of the following is a buffer system?

• H2O & HCl

• NaCl & NaNO3

• NaCl & NaOH

• H2CO3 & KHCO3

If the carbon dioxide level in the blood is too high, more carbonic acid is produced, and this results in the condition termed acidosis

• True

• False

Which of the following is classified as an alkaline earth metal?

• Calcium

• Potassium

• Copper

• Indium

A hydrogen bond is

• An attraction between a hydrogen atom attached to N,O, or F and another N, O or F atom

• A bond between a metal and nonmetal

• A bond between two nonmetals

• An attraction between hydrogen atoms

Which of the following molecules can form hydrogen bonds?

• NH3

• CH4

• HCl

Which change increases the amount of H3O+(aq) in the equilibrium system described by the equation below:

• Increase in pressure

• addition of CO2

• Removal of Co2

Identify the type of reaction displayed below:

• Single replacement

• Neutralization

• Combustion

• Synthesis

Identify the type of reaction displayed below:

• Single replacement

• Double replacement

• Synthesis

• Combustion

Which of the following represents hydrogen bonding?

• A

• B