Distinguish Ionic and Covalent

Select all options below that are ionic compounds:

• Calcium carbonate (CaCO₃)

• Nitrogen Trifluoride

  (NF₃)

• Sodium chloride (NaCl)

• Carbon dioxide

  (CO₂)

• Magnesium oxide (MgO)

Tags

NGSS.HS-PS1-3

Select the compounds below that are covalent bonds. Choose all that apply.

• Carbon tetrachloride

  (CCl₄)

• Covalent bonds are only found in metallic compounds.
• Compounds containing only noble gases have covalent bonds.
• Compounds containing covalent bonds include those formed by nonmetals.

Tags

NGSS.MS-PS1-1

Check all of the following that helps us identify compounds as ionic:

• cation and anion combined

• positive and negative ions combined

• metal combined with nonmetal combined

• two nonmetals combined

Pick the ways we recognize covalently bonded compounds? Choose all that apply.

• Positive cation, negative anion

• two nonmetals combined

• two anions combined

• positive cation, negative polyatomic anion.

Tags

NGSS.HS-PS1-1

Match the following with it's correct bond type.

• NO₂

• covalent

• NaCl

• covalent

• CaCl₂

• ionic

• NH₃

• covalent

• CO₂

• ionic

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-3

"N₂O₅" "PCl₃" "SiF₄"​ (a)   "BeCl2" "MgCl2" "AlS"​ (b)  

• Covalent
• Ionic

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What are two ways to distinguish between a covalently bonded compound and an ionic one?

• electronegativity difference is > 1.7 in ionic compounds

• covalent will contain a metal and nonmetal

• ionic has two nonmetals

• Ionic compounds will contain a cation

Tags

NGSS.HS-PS1-1

Which of the following is the best choice(s) for a covalent compound?

• Sodium chloride (NaCl)
• Dinitrogen trioxide(N₂O₃)

• Carbon dioxide (CO₂)

• Iron oxide (Fe₂O₃)

Tags

NGSS.HS-PS1-1

Which 3 of the following would help you determine a compound is NOT ionic?

• It contains two nonmetals

• It does not have a cation

• It contains two anions

• It contains a cation

Most covalent compounds are do not exist in which state?

• solid
• liquid
• gas

Tags

NGSS.MS-PS1-4