Chemical Reactions
What would you expect the two major products of a combustion reaction to be other than heat?
Carbon dioxide and water.
How many mL would 2 moles of fluorine gas occupy at STP.
44,800 mL
You reduced the pH of a substance from 6 to 3. How many "times" stronger did you make this acidic solution?
1,000
The end point.
What would be the pOH of a solution that has a pH of 3.5?
10.5
The total number of electrons an atom loses or gains in a chemical reaction is known as its ______ state.
oxidation/oxidative
The "ingredients" that still remain available even though the chemical reaction has stopped are known as ______ reactants.
excess
A substance that is toxic in large amounts/concentrations, slippery to the touch, and bitter to the taste is classified as a _____.
base
The point in a titration at which the acid levels and base levels are equal and a dramatic pH change occurs is called ___.
the equivalence point
A substance that is toxic in large amounts/high concentrations and is generally "sour" to the taste is known as an _______.
acid
A type of chemical reaction in which you have multiple ingredients but only ONE product is known as a ______ reaction.
synthesis
The first "ingredient" that is used up in a chemical reaction, bringing the react to a stop, is known as the _____.
limiting reactant
Name two examples of an intensive property.
Boiling point, color, luster, hardness, solubility, odor, density
A chemical substance used in titrations to indicate a pH change that normally would be unobservable is known as an ____.
indicator
Bases are typically indicated by what chemical symbol?
OH-
The technical name for "ingredients" in a chemical reaction is ______.
reactants
To use stoichiometric methods with a chemical equation, your amounts must be measure in the unit _____.
mole
Name two examples of a chemical property.
Reactivity, flammability, toxicity, ability to oxidize,
Analytical method in which a standard solution is used to determine the concentration of an unknown solution is known as a _____.
titration
Acids are typically indicated with what chemical symbols?
H+ OR H3O+
Name 3 pieces of evidence that indicate a chemical reaction has in fact taken place.
Light is produced, heat is absorbed or given off, gas is produced, a precipitate is formed, the color changes dramatically.
You have 2 moles of ammonium oxide, how many grams will this read out as on the scale?
52.1 grams
According to the equation for a chemical reaction you should have produced 10 moles of oxygen. You only produced 6.5 moles. What was your percent yield?
65%
How many mL of a 2 molar acid solution would it take to completely neutralize a 1 molar base solution of 50 mL?
25 mL
Water is said to be ______ meaning it can function as either an acid or a base depending on what you add to it.
amphoteric