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Vocabulary
Chemical Reactions
Balancing Chem. Equations
Organic Chemistry I
Organic Chemistry II
100
Define an endothermic reaction.
What is a reaction that takes in energy? (The energy within the products is higher than the energy within the reactants)
100
Explain the Law of Conservation of Matter, and how balancing chemical equations supports this.
What is the fact that matter cannot be created or destroyed. Balancing equations ensures that the atoms in the reactant(s) are the only atoms present in the product(s)?
100
Balance this equation: CH4 + O2 → CO2 + H2O.
What is: CH4 + 2O2 → CO2 + 2H2O.
100
State the three types of organic compounds.
What are hydrocarbons, carbohydrates, and organic acids
100
Explain what carbon rings do in a substance.
What is producing an aroma or odor?
200
Define a monomer.
What is a molecule or pattern that repeats to make a polymer?
200
Compare and contrast between a chemical formula and a chemical equation.
Chemical formulas show the composition of a certain individual substance, while chemical equations show the multiple substances in a chemical reaction (reactants and products), including the composition of such substances represented as chemical formulas.
200
Balance this equation: PCl5 → PCl3 + Cl2
What is: PCl5 → PCl3 + Cl2
200
Explain why carbon is a good substance for bonding.
Carbon has four valence electrons, allowing it to bond with almost any element, including itself, to form long chains and rings.
200
Explain the relationship between polymers and monomers.
Monomers, which are individual molecules/groups of atoms, make up, polymers, which are repeating groups of monymers.
300
State the Law of Conservation of Energy.
What is the fact that energy cannot be created or destroyed in a chemical reaction?
300
Explain the four ways to manipulate the speed of a chemical reaction.
What are the introduction of a catalyst/inhibitor, change of temperature of reactants, change of surface area of reaction, and change of concentration of reactants
300
Balance this equation: NO2 → NH3 + O2
What is: 2NO2 → 2NH3 + O2
300
Explain how to tell if a substance is an organic acid.
What is finding if a carboxyl group(COOH) is present in a full structural formula?
300
State the main use of hydrocarbons.
What is fuel?
400
Define a chemical equation.
What is a representation of a chemical reaction using symbols to show the substances that react and the new substances formed?
400
Explain the difference between an endothermic and exothermic reaction.
An endothermic reaction absorbs energy, while an endothermic reaction releases energy.
400
Balance this equation: OF2 + H2O → O2 + HF
What is: OF2 + H2O → O2 + 2HF
400
Explain, compare, and contrast a chemical formula, simplified structural formula, and a full structural formula
All these formulas show the composition of a substance, while the structural formulas show the arrangment of atoms within the substance. The full structural formula, however, is easier to read and show a more specific and detailed view than the simplified structural formula.
400
State how many hydrogen atoms are in gasoline, which contains 8 atoms of carbon.
What is 18?
500
Define an enzyme and explain what it does.
What is a catalyst found in nature to accelerate the rate of chemical reactions?
500
State the signs that a chemical reaction has occured.
What is the release/absorption of energy, forming of a new substance, and change in color/odor.
500
Balance this equation: C2H2 + O2 → CO2 + H2O
What is: 2C2H2 + 5O2 → 4CO2 + 3H2O
500
Differentiate between ring and chain structures.
Carbon ring structures are a ring of carbon that usually produces an odor, while a carbon chain is a chain of carbon and hydrogen typically used for fuel.
500
Explain the difference between single, double, and triple bonds.
Single bonds are one pair of shared electrons, double bonds are two pairs, and triple bonds are three shared pairs.