Chemistry Final 2

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What is a substance, typically a solid, that can hold water until exposed to heat called?: HYDRATE
The symbol for a chemical compound is called...: CHEMICAL FORMULA
A series of chemical symbols identifying the compounds present before and after a reaction.: CHEMICAL EQUATION
Another word for chemical change.: CHEMICAL REACTION
States that mass cannot be created nor destroyed.: LAW OF CONSERVATION OF MASS
A solid that forms from the mixture of two liquids.: PRECIPITATE
The compounds present at the beginning of the reaction.: REACTANTS
The compounds present at the end of the reaction.: PRODUCTS
Symbol for "yields".: --->
Symbols showing the ratios of reactants and products in a chemical reaction.: CHEMICAL EQUATION
Symbol for "reacts with".: +
Symbol for "gas released".: upward arrow
A solid formed during a double replacement reaction.: PRECIPITATE
Provides the reason for using coefficients to balance an equation.: LAW OF CONSERVATION OF MASS
Symbol for "precipitate".: downward arrow
States that the number of atoms of each element present at the beginning of the reaction equals the number of atoms of each element at the end of the reaction.: LAW OF CONSERVATION OF MASS
A number put above a chemical symbol to represent a charge.: SUPERSCRIPT
A number put below and to the right of a chemical symbol to represent the number of atoms.: SUBSCRIPT
A number placed before a chemical formula to indicate the number of molecules or moles present.: COEFFICIENT
Two things that can be represented by a coefficient.: RATIO of MOLES or MOLECULES
The amount of mass in one atom or molecule or compound.: AMU (ATOMIC MASS UNIT)
Symbol for heat.: TRIANGLE
Symbol for electricity.: "LIGHTNING BOLT" ARROW
Identify the reactant(s) in the following equation: 2H2 + O2 ---> 2H2O: H2 and O2
How many molecules of oxygen are present on the left? 2H2 + O2 ---> 2H2O: 1
How many atoms of oxygen are present on the right? 2H2 + O2 ---> 2H2O: 2
How many molecules of water are present? 2H2 + O2 ---> 2H2O: 2
What is the product? 2H2 + O2 ---> 2H2O: WATER
Is this reaction balanced? 2H2 + O2 ---> 2H2O: YES
The mass of 1 mole of an element or compound.: ATOMIC MASS
Another word for atomic mass, typically referring to a compound or molecule.: FORMULA MASS or MOLECULAR WEIGHT
Name for 6.022 x 10^23.: AVOGADRO'S NUMBER
The amount of energy required for a reaction to begin.: ACTIVATION ENERGY
List 7 factors that affect the rate of reaction.: ACTIVATION ENERGY, SURFACE AREA, TEMPERATURE, CATALYST
When a reaction occurs at the same rate in the forward and reverse direction.: CHEMICAL EQUILIBRIUM (or EQUILIBRIUM)
A reaction where at least two reactants combine to form a single product.: SYNTHESIS
A reaction where two compounds react to form two new compounds.: DOUBLE REPLACEMENT
A reaction forming a precipitate.: DOUBLE REPLACEMENT
A reaction in which a single element reacts with a compound and replaces one element in the compound.: SINGLE REPLACEMENT
A reaction in which you need to use a solubility table to predict the outcome.: DOUBLE REPLACEMENT
A reaction where a single reactant breaks down into two or more products.: DECOMPOSITION
A reaction in which you need to use the activity series to predict the outcome.: SINGLE REPLACEMENT
Identify the reaction type: 2H2 + O2 ---> 2H2O: SYNTHESIS
Identify the reaction type: Cl2 + AgF ---> AgCl + F2: SINGLE REPLACEMENT
Identify the reaction type: BaNO3 + Ag2SO4 ---? BaSO4 + AgNO3: DOUBLE REPLACEMENT
Identify reaction type: 2H2O ---> 2H2 + O2: DECOMPOSITION
A list of elements showing that the more reactive element is higher on the list and can replace any element below it.: ACTIVITY SERIES
A table showing if a precipitate will form.: SOLUBILITY TABLE
Equal to 6.022 x 10^23 atoms or molecules.: MOLE
Any substance that donates a hydrogen during a reaction.: ACID
Any substance that accepts a hydrogen during a reaction.: BASE
Any substance that has a hydroxide.: BASE
Any substance that dissociates (separates) into a hydrogen ion and anion in water.: ACID
How corrosive an acid is: VERY
How corrosive a salt is: NOT VERY
How corrosive a base is: VERY
The reactant(s) of neutralization: ACID AND BASE
The product(s) of neutralization: SALT and WATER
A scale ranking acidity and alkalinity of substances.: pH SCALE
pH value for neutral: 7
pH values for base: 7.1 to 14
pH values for acids: 1 to 6.9
Another word for base.: ALKALINE
A substance that increases the reaction rate by lowering the activation energy.: CATALYST
TRUE or FALSE: A salt is most often neutral.: FALSE: It is typically a weak acid or base.
A substance that resists change in pH.: BUFFER
Conductivity level of a strong acid or base.: HIGH
The process of neutralizing an acid or base by adding small amounts of the other.: TITRATION
The name of the reaction that is a mixture of an acid and base producing a salt and water.: NEUTRALIZATION
A reaction in which one atom is reduced and the other is oxidized.: REDOX
Examples of redox reactions.: single replacement, electrochemical, combustion, corrosion
A redox reaction that requires or produces electricity, including electroplating.: ELECTROCHEMICAL
A redox reaction between a covalent compound and oxygen.: COMBUSTION
A redox reaction between a metal, oxygen and water.: CORROSION
The substance that loses electrons during a redox reaction.: OXIDIZED ATOM
The substance that causes another compound to lose electrons in a redox reaction.: OXIDIZING AGENT
The substance that gains electrons during a redox reaction.: REDUCED ATOM
The substance that causes another compound to gain electrons during a redox reaction.: REDUCING AGENT
Which element is reduced in this reaction? AgF + Cl2 --> F2 + AgCl: Cl
Which element is oxidized in this reaction? AgF + Cu --> Ag + CuCl: Cu
Where do you look to convert grams to moles?: PERIODIC TABLE
Where do you look to convert moles of one substance to moles of another?: COEFFICIENTS ON THE CHEMICAL EQUATION
What do you use to determine molecular weight (also called formula mass)?: # g from periodic table = 1 mole
What does M (molarity) mean?: mole/L
A substance that identifies the pH of another substance.: pH indicator
A substance that tends to taste bitter.: ACID
A substance that tends to be slippery.: BASE
What do you use to convert between moles and molecules?: AVOGADRO'S NUMBER (6.022 x 10^23)
How many milliliters in one liter?: 1000
Numbers used to balance a chemical equation.: COEFFICIENTS

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