chemistry tomorow

Which element could sublime when heated?

• Br2(l)

• I2(s)

• F2(g)

• Cl2(g)

The compound CO2(s) sublimes readily at 25°C. Which

properties are usually associated with a compound thatundergoes

this kind ofchange?

• high vapor pressure and high intermolecular attractions

• high vapor pressure and low intermolecular attractions

• low vapor pressure and high intermolecular attractions

• low vaporpressure and low intermolecular attractions

What is the vapor pressure of water at 90.°C?

• 40.kPa

• 68.kPa

• 94 .kPa

• 150 kPa

Based on Table H, which compound

intermolecular forces at 60 kPa?

• ethanoic acid

• propanone

• ethanol

• water

What is the vapor pressure of propanone atS0°C

• 37 kPa

• 50 kPa

• 83 kPa

• 101 kPa

At which temperature is the vapor pressure of ethanol equal to 80 kPa ?

• 48°C

• 73°C

• 80°C

• 101°C

Which is the most common property of all liquids?

• definite shape

• definite volume

• high compressibility

• high vaporpressure

The graph below represents the relationship between the vapor

pressure and temperature of four liquids.

Which liquid has a normal boiling point of 79°C?

• A

• B

• C

• D

Which statement describes a solution of sodium chloride in

water?

• The mixture is heterogeneous, the solute is NaCl and the

  solvent is H20.

• The mixture is heterogeneous, the solute is Ha0 and the

  solvent is NaCl.

• The mixture is homogeneous, the solute is NaCl and the

  solvent is H20,

• The mixture is homogeneous,the solute is H20 and the

  solvent is NaCl.

Given the diagrams X Y, and Z below: Which diagram or diagrams represent a mixture of elements A

and B?

A) X, only B) Z, only C) X and Y D) X and Z

• A

• B

• C

• D