Ionic
Find the formula for magnesium chloride if magnesium has 2 valence electrons and chlorine has 7 valence electrons
MgCl2
Methane, bonds with the share of valence electrons carbon having 4 valence electrons and Hydrogen having 1. What is its formula
CH4
Find the mole ratio between H2 and O2 in this equation
2H2+O2->2H2O
2:1
What is the charge of titanium in TiO2
(titanium(IV) oxide)
(+4)
What type of reaction is this?
A+B—>AB
Synthesis
Find the formula for calcium bromide if calcium has 2 valence electrons and bromine has 7 valence electrons
CaBr2
Ammonia, bonds with nitrogen (nonmetal) having 1 valence electron and nitrogen (nonmetal) having 5. What’s its formula
NH3
Which type of these reactions is NOT a chemical reaction?
Rust
Metal chipped when put in an unknown liquid
Freezing
Powder lit in flames when unknown liquid is poured
Freezing
What type of reaction is this?
AB+CD—>AC+BD
Double Replacement
Name at least two signs of chemical change
(proof that it is chemical change not physical change)
Color change
bubbles
precipitate forms
sudden, unexpected temperature change
smell change
Find the formula for potassium chloride if potassium is a cation and chloride is an anion
KCI
Iodine monobromide, bonds with the share of the valence electrons iodine having 7 and bromine 7 as well. What’s its formula
IBr
How to balance this equation
CH4+O2->H2O+CO2
CH4+2O2->2H2O+CO2
What type of reaction is this?
AB+C—>AC+B
Single Replacement
Balance this equation
C3H8+O2->CO2+H2O
2C3H8+O2->6CO2+2H2O
What’s the name of “NaF” If Na is a cation and F an anion
Sodium Chloride
Carbon tetrafluoride, share valence electrons with carbon (nonmetal) having 4 valence electrons and fluorine (nonmetal) having 7. What’s its formula
CF4
What type of reaction is this?
CH4+O2 -> H2O+CO2
Combustion
What type of reaction is this?
AB—>A+B
Decomposition
What type of reaction is
AgNO3 + NaCl --> AgCl + NaNO3
double replacement or double displacement