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77 Cards in this Set

  • Front
  • Back
a number placed in front of a chemical formula
COEFFICIENT
numbers used to balance chemical equations
COEFFICIENTS
"two atoms"
DIATOMIC
elements that when alone come in pairs
DIATOMIC
diatomic elements
H,O,F,Br,I,N,Cl
substances combined during a reaction
REACTANTS
substances present before the reaction
REACTANTS
substances to the left of the arrow
REACTANTS
an abbreviation for a chemical compound
CHEMICAL FORMULA
uses numbers and chemical symbols to represent what is happening in a chemical reaction
CHEMICAL EQUATION
mass cannot be created or destroyed, but atoms can be rearranged
LAW OF CONSERVATION OF MASS
why we need to balance chemical equations
LAW OF CONSERVATION OF MASS
substances remaining after a reaction
PRODUCTS
substances formed during a reaction
PRODUCTS
substances to the right of the arrow
PRODUCTS
reaction when a substance is broken down into its parts
DECOMPOSITION
reaction with only one reactant
DECOMPOSITION
AB --> AB
DECOMPOSITION
two or more substances combine to form one new substance
SYNTHESIS
A + B --> AB
SYNTHESIS
reaction with only one product
SYNTHESIS
solid formed during a double replacement reaction
PRECIPITATE
a single element is replaced by a more active element that is part of a compound
SINGLE REPLACEMENT
A + BC --> B + AC
SINGLE REPLACEMENT
A + BC --> C + BA
SINGLE REPLACEMENT
requires the activity series to determine if an element can replace an element of a compound
SINGLE REPLACEMENT
element + compound --> element + compound
SNGLE REPLACEMENT
products indicating a double replacement reaction
PRECIPITATE, GAS, or WATER
2 aqueous compounds --> 2 compounds
DOUBLE REPLACEMENT REACTION
AB + CD --> AD + BD
DOUBLE REPLACEMENT REACTION
reaction when the ions switch places
DOUBLE REPLACEMENT REACTION
Question
Answer
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
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 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
Numbers used to balance a chemical equation.
COEFFICIENTS
A substance that increases the reaction rate by lowering the activation energy.
CATALYST