Bonds
Chemical Formulas
Atoms, Elements, and the Periodic Table
Balancing Equations
Types of Equations
100
The reason why atoms form bonds.
What is to obtain a full valence shell?
100
Sodium + Chlorine
What is NaCl?
100
the group number of Calcium?
What is 2?
100
Cl2 + NaBr ---> NaCl + Br2
What is Cl2 + 2NaBr ---> 2NaCl + Br2
100
2Ag2O ---> 4Ag + O2
What is decomposition?
200
A type of bond between a metal and a nonmetal.
What is an ionic bond?
200
Oxygen + Oxygen
What is O2
200
The number of valence electrons in at atom of argon.
What is 8?
200
SiCl4 ---> Si + Cl2
What is SiCl4 ---> Si + 2Cl2?
200
P4 + 3O2 ---> P4O6
What is synthesis?
300
A bond that transfers electrons from one atom to another.
What is a ionic bond?
300
Carbon + 4 Hydrogen
What is CH4?
300
The oxidation number of tellurium.
What is -2?
300
HgO ---> Hg + O2
What is 2HgO ---> 2Hg + O2?
300
Cl2 + NaBr ---> NaCl + Br2
What is single replacement?
400
A bond between Na and Cl.
What is an ionic bond?
400
Lithium + Oxygen
What is Li2O?
400
The number of oxygen atoms in 4BaSO4.
What is 16?
400
Fe + O2 ---> Fe2O3?
What is 4Fe + 3O2 ---> 2Fe2O3 ?
400
CuCl2 + H2S ---> CuS + 2HCl
What is double replacement?
500
A type of bond where electrons are shared unequally.
What is a polar covalent bond?
500
Beryllium + Nitrogen
What is Be3N2?
500
The number of hydrogen atoms in 3(NH4)2
What is 24?
500
NH3 + H2SO4 ---> (NH4) 2 + SO4
What is 2NH3 + H2SO4 ---> (NH4) 2 + SO4?
500
H2SO4 + CaCO3 ---> CaSO4 + H2O + CO2
What is double replacement?
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