U2 - Binary Compounds

Question 1

•Binary Ionic Compounds

Answer 1

• Ionic compounds

* 1 cation + 1 anion

Question 2

•Naming for Binary Ionic Compunds

Answer 2

• metal + root of non-metal + “-ide”

* e.g. NaCl; sodium chloride

Question 2

•Formula for Binary Ionic Compounds

Answer 2

• “Criss-cross” method
• e.g. magnesium sulfide; MgS
• Always reduce for ionic compounds

Question 3

•Binary Molecular Compounds

Answer 3

• Molecular/Covalent compound
• Non-metal + non-metal
• Never reduce for molecular

Question 4

•Binary Molecular Compound Prefix with Oxygen

Answer 4

• Drop the vowel before “o”

* e.g. dinitrogen pentaoxide –> dinitrogen pentoxide