Chemistry SLO

Pre-Assessment Chemistry7A: name ionic compounds containing main group or transition metals, covalent compounds, acids, and bases, using International Union of Pure and Applied Chemistry (IUPAC) nomenclature rules;7B: write the chemical formulas of common polyatomic ions, ionic compounds containing main group or  
transition metals, covalent compounds, acids, and bases;  The correct formula for ammonium phosphate is

• (NH4)3 PO4 
• NH4PO4
• NH4(PO4)3 
•  (NH4)3P

Which of the following is the correct formula for iron (III) sulfate? 

• Fe3SO4
• Fe3(SO4)2
• Fe2(SO4)3 
• 3FeSO4

The correct formula for lithium sulfide is 

• Li2SO4 
• LiSO4
•  LiS2  
• Li2S

 The name for the compound  N2O4  is 

• dinitrogen tetroxide
• nitrogen oxide 
• dinitrogen oxygen 
• nitrogen(II) oxide 

Which of the following pairs of elements COULD react to form an ionic compound?

• sulfur and oxygen 
• potassium and calcium  
• fluorine and copper
• hydrogen and oxygen

Tags

NGSS.HS-PS1-2

When electrons are exchanged between metals and nonmetals, metals ________ electrons to form ____________. Nonmetals ___________ electrons to form _____________.  

•  lose / cations & gain / anions
• lose / anions & gain / cations 
•  gain / anions & lose / cations
• gain / cations & lose / anions

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is the correct ionic compound formula for copper(II) fluoride? 

• Cu2F
•  Cu2F2
• CuF2
• Cu2F3

Which of the following pairs of elements would not react to form an IONIC compound? 

•  iron and oxygen 
• sodium and iodine
• sulfur and phosphorus   
• aluminum and bromine

Metals form which type of ions? 

•  Negative
• Cations 
• Anions
• Positive

What is formed from the gain of electrons?

•  compounds
• molecules
• anions
•  ions