Concepts and Vocab
What is the number we put in place of a formula to balance it called?
Coefficient
2H2O → 2H2 + O2
What is decomposition?
What type of reaction has one reactant and two or more products?
What is Decomposition?
__PbO2 → ____ PbO + _____O2
2,2,1
___ CuCl2 + ____H2S -> ____CuS + ____HCl
1,1,1,2
What are the starting substances in a reaction called?
Reactants
Zn + 2HCl → ZnCl2 + H2
What is single replacement?
What is the type of reaction where one element replaces another in a compound?
What is single replacement?
___Mg + ___N2 → _____Mg3N2
3,1,1
SeCl6 + O2→SeO2 + Cl2
1,1,1,3
What is the small number after an element abbreviation in a chemical formula called?
Subscript
C10H8 + 12O2 → 10CO2 + 4H2O
What is combustion?
What type of reaction has two or more reactants and one product?
What is synthesis/combination?
___KClO3 →____KCl + ____O2
2,2,3
____C3H6O + ____4O2 → ____CO2 + _____H20
1,4,3,3
How many Sulfur and how many Oxygen are there in the following:
(SO4)3
Sulfur: 3
Oxygen: 12
NaCl + AgNO3 → NaNO3 + AgCl
What is double replacement?
What type of reaction has a compound reacting with oxygen to produce carbon dioxide and water?
What is combustion?
___Al + ___HCl → ___AlCl3 +___H2
2,6,2,3
__Fe + __O2 -> __Fe2O3
4,3,2
Name 3 signs of a chemical reaction
- Production of odor
- Production of a gas
- Temperature (energy) change
- Difficult to reverse
- Change colors
2NaNO3 → 2NaNO2 + O2
What is decomposition
What type of reaction has two ionic compounds exchanging cations?
What is double replacement ?
_____P4O10 +____H20 →_____H3PO4
1,6,4
___C6H6 + ___O2 →___CO2 + ____H20
2,15,12,6