CHM112 Term 3 Quiz 4

A solution in which no more solute can dissolve is referred to as:

• a solution

• supersaturated

• saturated

• unsaturated

Which of the following is a weak acid?

• diluted HCl

• ammonia

• carbonic acid

• potassium hydroxide

Which of the following compounds should have the lowest boiling point?

• HF

• CH₄

• NH₃

• H₂O

A tetrahedral molecular shape has:

• 3 bonding electron pairs

• 2 bonding pairs and 2 non bonding pairs of electrons

• 4 bonding electron pairs

• 2 bonding pairs and 1 non bonding pairs of electrons

A linear shaped molecule has:

• 2 bonding pairs of electrons and 0 non bonding pair of electrons

• 2 bonding pairs of electrons and 1 non bonding pair of electrons

• 3 bonding pairs of electrons and 0 non bonding pair of electrons

• 2 bonding pairs of electrons and 2 non bonding pair of electrons

The three types of intermolecular force, in order of strength, are:

• dipole-dipole forces, hydrogen bonding, dispersion forces

• dispersion forces, hydrogen bonding, dipole-dipole forces

• dispersion forces, dipole-dipole forces, hydrogen bonding

• dipole-dipole forces, hydrogen bonding, dispersion forces

What are the products of an acid carbonate reaction?

• salt + water

• salt + carbon dioxide + water

• salt + hydrogen gas

• salt + water + hydrogen gas

How many moles are in a 18 L tank of nitrogen gas at STP? 

• 0.9 moles
• 1 mole
• 0.8 moles
• 0.75 moles 

Using the following equation:
Fe₂O₃(s) + 3H₂(g) → 2Fe(s) + 3H₂O(l)
How many moles of iron can be made from  6 moles H₂? 

• 4 moles Fe
• 6 moles Fe
• 9 moles Fe
• 2 moles Fe

Tags

NGSS.HS-PS1-7

Based on its position on the periodic table, calcium and magnesium both

• form cations with a 2+ charge

• form anions with a 2- charge

• do NOT ionize

• will bond to make an ionic compound

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2