Chemistry homework worksheet on formulas and covalent bonds, including exercises on ionic compounds, chemical formulas, and bond types.

A chemistry homework worksheet titled "Formulas and Covalent Bonds Homework" featuring sections on filling in blanks about metals and nonmetals, writing chemical formulas for ion pairs, and identifying ionic or covalent bonds in compounds.

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METALS lose electrons and carry a positive charge.
(Group 1 is the most willing to lose electrons)
NONMETALS gain electrons and carry a negative charge.
(Group 17 is the most willing to gain electrons)

HF
(NH4)2O
MgCl2
CuI2
Ba(CN)2
Ca(NO3)2
NH4Cl
SrF2
MgO
FeBr2
Ca(OH)2
Ba(NO3)2
Al2(SO4)3
Cr2O3
Fe2O3
Al(NO3)3

Ionic bonds are always formed between a metal and a nonmetal.
Covalent bonds are ONLY formed between nonmetals.

HgO I
CCl4 C
NaCl I
AgI I
SiO2 C
CO C
HgO I
CCl4 C
NaCl I

Parent Tip: Review the logic above to help your child master the concept of bonding worksheet.

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