Here are the solutions to the chemistry problems on your worksheet.
Part 1: Determine if Ionic or Covalent and Name It
1) Na₂CO₃
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Type: Ionic (Metal + Polyatomic Ion)
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Name: Sodium carbonate
2) P₂O₅
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Type: Covalent (Non-metal + Non-metal)
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Name: Diphosphorus pentoxide
3) NH₃
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Type: Covalent (Non-metal + Non-metal)
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Name: Ammonia (or Nitrogen trihydride)
4) FeSO₄
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Type: Ionic (Transition Metal + Polyatomic Ion)
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Name: Iron(II) sulfate
5) SiO₂
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Type: Covalent (Non-metal/Metalloid + Non-metal)
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Name: Silicon dioxide
6) GaCl₃
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Type: Ionic (Metal + Non-metal)
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Name: Gallium chloride
7) CoBr₂
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Type: Ionic (Transition Metal + Non-metal)
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Name: Cobalt(II) bromide
8) B₂H₄
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Type: Covalent (Non-metal/Metalloid + Non-metal)
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Name: Diboron tetrahydride
9) CO
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Type: Covalent (Non-metal + Non-metal)
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Name: Carbon monoxide
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Part 2: Determine if Ionic or Covalent and Write the Formula
10) dinitrogen trioxide
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Type: Covalent
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Formula: N₂O₃
11) nitrogen
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Type: Covalent (Diatomic element)
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Formula: N₂
12) methane
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Type: Covalent
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Formula: CH₄
13) lithium acetate
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Type: Ionic
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Formula: LiC₂H₃O₂ (or LiCH₃COO)
14) phosphorus trifluoride
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Type: Covalent
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Formula: PF₃
15) vanadium (V) oxide
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Type: Ionic
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Formula: V₂O₅
16) aluminum hydroxide
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Type: Ionic
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Formula: Al(OH)₃
17) zinc sulfide
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Type: Ionic
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Formula: ZnS
18) silicon tetrafluoride
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Type: Covalent
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Formula: SiF₄
19) silver phosphate
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Type: Ionic
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Formula: Ag₃PO₄
Parent Tip: Review the logic above to help your child master the concept of compounds and molecules worksheet.
