Grab Bag
What does the law of conservation of energy state?
Energy cannot be created or destroyed, only transferred
What is the formula for glucose?
C6H12O6
Balance this equation:
___ N2 + ___ H2 --> ___NH3
1N2 + 3H2 --> 2NH3
What kind of reaction is this:
AB --> A + B
Decomposition
Name the diatomic elements
BrINClHOF
What type of bond would form between Chlorine and Oxygen?
Covalent Bond
What is the formula for Dinitrogen Trioxide?
N2O3?
Balance this equation:
___Na + ___H2O = ___NaOH + ___H2
2Na + 2H2O = 2NaOH + 1H2
What kind of reaction is this:
AB + C --> A + BC
Single Replacement
How do substances form during a chemical reaction?
bonds break, rearrange, and form new chemical bonds
What type of change would a state change represent?
physical
What is the name of MgCl2?
magnesium chloride
Balance this equation:
___NaBr + ___Cl2 --> ___NaCl + ___Br2
2NaBr + 1Cl2 --> 2NaCl + 1Br2
What kind of reaction is this:
4Fe + 3O2 --> 2Fe2O3
Synthesis
Write the synthesis equation that would form table salt.
2 Na + Cl2 ----> 2NaCl
A cation is a _____ ion, while an anion is a _____ ion.
Cation = Positive (+)
Anion = Negative (-)
What is the formula for Magnesium bromide?
MgBr2
Balance this equation:
___SeCl6 + ___O2 --> ___SeO2 + ___Cl2
1SeCl6 + 1O2 --> 1SeO2 + 3Cl2
What type of reaction is this?
O2 + C5H12 --> CO2 + H2O
Combustion
Write the decomposition equation that would form from water.
2H2O ---> 2H2 + O2
What type of bond does Al2O3 have?
Ionic bond. Aluminum is a metal, while oxygen is a nonmetal.
Ca is Calcium, and CO32- is the polyatomic ion known as Carbonate.
What is the formula for Calcium Carbonate?
CaCO3
Balance this equation:
___Fe + ___O2 --> ___Fe2O3
4Fe + 3O2 --> 2Fe2O3
Silicon dioxide solid and aqueous hydrofluoric acid (HF) reacts to form silicon tetrafluoride and liquid water. What type of reaction would this be
DR
Methane (CH4) combusts
CH4 +2O2 ---> CO2 + 2H2O