Formulas & Bonding
Phase Changes & Reactions
Equation Analysis
Reaction Types
Energy & Conservation
100
In a chemical formula, the numbers that show the count of each type of atom in a compound are called this.
What are subscripts?
100
When liquid water is heated, this happens to the speed of its molecules.
What is they move faster?
100
Look at the equation: Al2(So4)3 + 3BaCl2 --> 2AlCl3 + 3BaSo4
What coefficient number is placed in front of Barium Chloride BaCl2 on the reactant side?
What is 3?
100
Identify the type of reaction:
2Na + Cl2 --> 2NaCl
What is synthesis?
100
This minimum amount of energy is required to start breaking bonds at the beginning of a chemical reaction.
What is Activation Energy?
200
An ionic bond is typically formed when these types of elements combine.
What are a Metal and Nonmetal?
200
Melting an ice cube is an example of a physical change, whereas burning wood and rusting iron are examples of this.
What is a Chemical change?
200
Look at the equation: Al2(So4)3 + 3BaCl2 --> 2AlCl3 + 3BaSo4
How many total oxygen atoms are present on the reactant side within Aluminum Sulfate Al2(So4)3?
What is 12 (4 x 3)?
200
Identify the type of reaction:
2H2O --> 2H2 + O2
What is decomposition?
200
Your body produces heat through a reaction that releases energy, making it this type of process.
What is an Exothermic process?
300
In the chemical formula for Glucose (C₆H₁₂O₆), this element has the greatest number of atoms.
What is Hydrogen (12 atoms)?
300
Before new chemical bonds can form during a chemical reaction, this must happen first to the bonds of the reactants.
What is they must be broken?
300
Look at the equation: Al2(So4)3 + 3BaCl2 --> 2AlCl3 + 3BaSo4
How many total chlorine atoms are produced on the product side in 2AlCl3?
What is 6 (2 x 3)?
300
Identify the type of reaction:
Zn + 2HCl --> ZnCl2 + H2
What is single displacement?
300
When iron combines with oxygen to form rust, the total mass of the products is _____________ as the reactants because of the Law of Conservation of Mass.
What is it is the same as the mass of the reactants?
400
This type of chemical reaction is the only one that results in just one single product.
What is a Synthesis reaction?
400
What does an inhibitor do?
What is it slows down or stops a chemical reaction?
400
What does the Law of Conservation of Mass state?
What is mass is neither created nor destroyed in a reaction?
400
Identify the type of reaction:
AgNO3 + NaCl --> AgCl + NaNO3
What is double displacement?
400
Identify the type of reaction the graph is showing.
What is exothermic reaction?
500
What number of valence electrons makes most elements stable?
What is 8?
500
True or False: When matter undergoes a chemical change it can not be changed back to its original state.
What is true?
500
Balance this equation:
_____ H₂ + ______O₂ → _____ H₂O
__2___ H₂ + ______O₂ → __2___ H₂O
500
Identify the type of reaction:
C3H8 + 5O2 --> 3CO2 + 4H2O
What is combustion?
500
Identify the type of reaction the graph is showing.
What is endothermic reaction?