Chemical Change
Two or more simple substances react to form a more complex product
What is a synthesis reaction?
The substances at the beginning of a chemical reaction
What are reactants?
DOUBLE JEOPARDY!
Name the five types of chemical reactions.
What is synthesis, decomposition, single displacement, combustion, and double displacement?
A number placed in front of a chemical formula
What is a coefficient?
The amount of atoms total in this chemical formula:
2Al2O6
What is 16?
One element takes the place of another in a compound
What is a single displacement reaction?
The new substances formed in a chemical reaction
What are products?
True or false: Bonds of the reactants are formed, and bonds of the products are broken during chemical reactions.
What is false?
The small number next to the right side of an element in a chemical equation
What is a subscript?
Classify this chemical reaction: CaCO3 --> CaO + CO2
What is decomposition?
A reaction in which elements are exchanged between two compounds to produce new compounds
What is a double displacement reaction?
During a chemical reaction, mass cannot be created or destroyed.
What is the Law of Conservation of Mass?
Compounds are broken down into simpler products
What is a decomposition reaction?
DOUBLE JEOPARDY!
Balanced or not:
3 KOH + 2 H₃PO₄ → 3 K₃PO₄ + 3 H₂O
What is no/not balanced?
Amount of Hydrogen atoms in 4H2O
What is 8?
DOUBLE JEOPARDY!
Name the 4 indications of a chemical change
What is gas production, light/heat/energy, color change, & formation of precipitate?
Name the type of chemical reaction:
AB + C --> B + AC
What is a single displacement reaction?
A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products.
What is a chemical equation?
Balance this equation: SO2 + O2 --> SO3
2SO2 + O2 -> 2SO3
Metal A can replace Metal B in a chemical reaction only if Metal A is (above or below) Metal B in the Activity Series Table.
What is above?
Identify the reactants in the following equation:
__ Na₃PO₄ + __ HCl → __ NaCl + __ H₃PO₄
What is Na₃PO₄ and HCl?
True or False: A chemical reaction has taken place when a substances freezes in the freezer.
What is false?
Which of the following reactions is balanced?
A. 2CH4 + O2 -> CO2 + H2O
B. CH4 + 2O2 -> CO2 + 2H2O
C. CH4 + 2O2 -> CO2 + H2O
What is B?
Balance this equation: Fe2O3 + C --> Fe + CO2
2Fe2O3 + 3C --> 4Fe + 3CO2
Balanced or not: Al + O2 --> 2Al2O3
What is no or not balanced?