Chemistry Final Exam Modified

The molar volume of a gas at STP occupies _____________.

• 22.4 L

• 0˚C

• 1 kiloPascal

• 12 grams

In a double replacement, ____________________

• The reactants are usually a metal and a nonmetal

• One of the reactants is often water

• The reactants are generally 2 ionic compounds in aqueous solutions

• Energy in the form of light or heat is often produced

If 2.00 L of a gas in a container at room temperature exerts a pressure of 4.00 atm. If the pressure doubles and the temperature remains the same, the volume would become ________.

• 16.0 L

• 2.00 L

• 4.00 L

• 1.00 L

Which name represents the formula  $Fe_2O_3$  ?

• Iron (III) oxide

• Iron (II) oxide

An ionic bond is between

• metal and metal

• metal and nonmetal

• nonmetal and nonmetal

A covalent bond is between

• metal and metal

• metal and nonmetal

• nonmetal and nonmetal

Is this the correct lewis dot for Sodium?

• yes

• no

Which Lewis dot matched the configuration:

 $1s^2$   $2s^2$   $2p^2$   $2p^6$   $3s^1$  

• 
• 
• 

Which Lewis dot matched the configuration:

 $1s^2$   $2s^2$   $2p^2$  

• 
• 
• 

Which is the electron configuration of an atom of Period 3 element?

• 1s²2s¹

• 1s²2s²2p⁶3s¹