Chemical reactions
pH
Bonding
Solutions and Solubility
Gas Laws
100
The substances reacting together in a chemical reactions are called
The reactants
100
What does pH mean?
potential of hydrogen
100
I am formed when two nonmetals bond together.
What is a covalent bond?
100
The type of mixture needed to form a solution.
What is homogeneous?
100
If pressure is a constant, the relationship between volume and temperature is this.
What is a direct relationship?
200
Hydroperoxide becomes water and oxygen. Identify the reaction.
What is decomposition?
200
If you add water to a strong acid, what happens to its pH?
Gets closer to neutral.
200
Sodium and sulfur would form this kind of bond.
What is an ionic bond?
200
This is considered by most to be a universal solvent.
What is water?
200
If temperature is constant, then the relationship between pressure and volume is this.
What is an indirect relationship?
300
The total mass of the reactants in a chemical reaction is equal to the mass of the products. This is the
law of conservation of mass
300
Identify at least two ways to determine acidity of a substance.
sour taste, increased conductivity, turns blue litmus paper red, increases corrosiveness
300
The oxidation number tells me this.
What are the number of electrons lost or gained?
300
150 grams of this compound is said to be supersaturated until we reach this approximate temperature.
What would be 75 degrees Celsius?
300
This underlying principle makes the gas laws possible.
What is the ability to be compressed?
400
What does a combustion reaction require to happen?
Oxygen and energy
400
Classify these substances as acid, basic or neutral:
coffee, lemon juice, water, baking soda
Acids: coffee and lemon juice
Bases: baking soda
Neutral: water
400
This is needed to occur for a stable molecule to form ionically.
What is a correct number of atoms to balance the charge?
400
Define saturated as it applies to a solution.
When a solution can contain no more solute without separation occuring.
400
Gas particles do this when pressure is increased while the volume of the container is not changed.
What is increase in temperature?
500
Look at this reactions and classify them:
2HgO ➜ 2Hg + O2
AB + CD → AD + CB
Fe + S ➜ FeS
decomposition
double displacement/replacement
Synthesis
500
Which acid and base can form table salt? (give formula and name)
Hydrochloric acid HCl and Sodium hydroxide NaOH
500
This is the most obvious difference in naming covalent compounds and ionic compounds.
What is adding prefixes in naming covalent compounds while only changing the ending to the ionic compound?
500
These are all three ways to increase the rate of solubility for a solution.
What are adding heat, stirring, and breaking up the solute into smaller pieces.
500
These two laws work in conjunction to enable hot air balloons to operate.
What are Charles' Law and Gay-Lussac's Law?