Compounds and Chemical Reactions

Which is the correct name for AlBr₃?

• Aluminum bromine
• Bromine aluminide
• Aluminum bromide
• Aluminum (III) bromide

How many electrons are needed in the outer energy levels of most atoms to be stable?

• 2
• 4
• 6
• 8

What is the proper name for S₂O₂?

• Sulfur oxide
• Sulfur dioxide
• sulfur (II) oxide
• disulfur dioxide

Which three nonmetals exist only as diatomic molecules?

• H, C, Br
• N, O, S
• I, F,N
• H, O, P

A charged particle that has gained or lost electrons is called a _____.

• molecule
• ion
• isotope
• element

What is a polar molecule?

• One that has a partial negatitive on one end and a partial positive on the other
• a molecule with little vibration
• an ionic compound
• the nonpolar bonds are arranged sequentially

_{Name this reaction,} CO₂ + H₂O --> H₂CO₃ 

• Decomposition
• Single Replacement
• Synthesis
• Combustion

Name this reaction, Cl₂ + 2KI _-->  I₂ + 2KCl

• Synthesis
• Single Replacement
• Double Replacement
• Decomposition

How many Al atoms are in this compound?         4Al₂O₃

• 2
• 8
• 6
• 4

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

 Which is NOT an example of chemical change?

• production of gas.
• change in color.
• change in size.
• transfer of energy.
  

Tags

NGSS.MS-PS1-2