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77 Cards in this Set
- Front
- Back
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a number placed in front of a chemical formula
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COEFFICIENT
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numbers used to balance chemical equations
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COEFFICIENTS
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"two atoms"
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DIATOMIC
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elements that when alone come in pairs
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DIATOMIC
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diatomic elements
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H,O,F,Br,I,N,Cl
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substances combined during a reaction
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REACTANTS
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substances present before the reaction
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REACTANTS
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substances to the left of the arrow
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REACTANTS
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an abbreviation for a chemical compound
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CHEMICAL FORMULA
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uses numbers and chemical symbols to represent what is happening in a chemical reaction
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CHEMICAL EQUATION
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mass cannot be created or destroyed, but atoms can be rearranged
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LAW OF CONSERVATION OF MASS
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why we need to balance chemical equations
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LAW OF CONSERVATION OF MASS
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substances remaining after a reaction
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PRODUCTS
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substances formed during a reaction
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PRODUCTS
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substances to the right of the arrow
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PRODUCTS
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reaction when a substance is broken down into its parts
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DECOMPOSITION
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reaction with only one reactant
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DECOMPOSITION
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AB --> AB
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DECOMPOSITION
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two or more substances combine to form one new substance
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SYNTHESIS
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A + B --> AB
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SYNTHESIS
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reaction with only one product
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SYNTHESIS
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solid formed during a double replacement reaction
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PRECIPITATE
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a single element is replaced by a more active element that is part of a compound
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SINGLE REPLACEMENT
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A + BC --> B + AC
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SINGLE REPLACEMENT
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A + BC --> C + BA
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SINGLE REPLACEMENT
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requires the activity series to determine if an element can replace an element of a compound
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SINGLE REPLACEMENT
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element + compound --> element + compound
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SNGLE REPLACEMENT
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products indicating a double replacement reaction
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PRECIPITATE, GAS, or WATER
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2 aqueous compounds --> 2 compounds
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DOUBLE REPLACEMENT REACTION
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AB + CD --> AD + BD
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DOUBLE REPLACEMENT REACTION
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reaction when the ions switch places
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DOUBLE REPLACEMENT REACTION
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Question
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Answer
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What is a substance, typically a solid, that can hold water until exposed to heat called?
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HYDRATE
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The symbol for a chemical compound is called...
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CHEMICAL FORMULA
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A series of chemical symbols identifying the compounds present before and after a reaction.
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CHEMICAL EQUATION
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Another word for chemical change.
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CHEMICAL REACTION
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States that mass cannot be created nor destroyed.
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LAW OF CONSERVATION OF MASS
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A solid that forms from the mixture of two liquids.
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PRECIPITATE
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The compounds present at the beginning of the reaction.
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REACTANTS
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The compounds present at the end of the reaction.
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PRODUCTS
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Symbol for "yields".
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--->
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Symbols showing the ratios of reactants and products in a chemical reaction.
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CHEMICAL EQUATION
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Symbol for "reacts with".
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+
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Symbol for "gas released".
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upward arrow
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A solid formed during a double replacement reaction.
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PRECIPITATE
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Provides the reason for using coefficients to balance an equation.
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LAW OF CONSERVATION OF MASS
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Symbol for "precipitate".
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downward arrow
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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.
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LAW OF CONSERVATION OF MASS
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A number put above a chemical symbol to represent a charge.
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SUPERSCRIPT
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A number put below and to the right of a chemical symbol to represent the number of atoms.
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SUBSCRIPT
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A number placed before a chemical formula to indicate the number of molecules or moles present.
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COEFFICIENT
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Symbol for heat.
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TRIANGLE
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Symbol for electricity.
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"LIGHTNING BOLT" ARROW
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Identify the reactant(s) in the following equation: 2H2 + O2 ---> 2H2O
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H2 and O2
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How many molecules of oxygen are present on the left? 2H2 + O2 ---> 2H2O
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1
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How many atoms of oxygen are present on the right? 2H2 + O2 ---> 2H2O
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2
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How many molecules of water are present? 2H2 + O2 ---> 2H2O
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2
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What is the product? 2H2 + O2 ---> 2H2O
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WATER
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Is this reaction balanced? 2H2 + O2 ---> 2H2O
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YES
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The amount of energy required for a reaction to begin.
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ACTIVATION ENERGY
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List 7 factors that affect the rate of reaction.
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ACTIVATION ENERGY, SURFACE AREA, TEMPERATURE, CATALYST
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When a reaction occurs at the same rate in the forward and reverse direction.
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CHEMICAL EQUILIBRIUM (or EQUILIBRIUM)
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A reaction where at least two reactants combine to form a single product.
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SYNTHESIS
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A reaction where two compounds react to form two new compounds.
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DOUBLE REPLACEMENT
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A reaction forming a precipitate.
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DOUBLE REPLACEMENT
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A reaction in which a single element reacts with a compound and replaces one element in the compound.
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SINGLE REPLACEMENT
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A reaction in which you need to use a solubility table to predict the outcome.
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DOUBLE REPLACEMENT
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A reaction where a single reactant breaks down into two or more products.
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DECOMPOSITION
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A reaction in which you need to use the activity series to predict the outcome.
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SINGLE REPLACEMENT
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Identify the reaction type: 2H2 + O2 ---> 2H2O
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SYNTHESIS
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Identify the reaction type: Cl2 + AgF ---> AgCl + F2
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SINGLE REPLACEMENT
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Identify the reaction type: BaNO3 + Ag2SO4 ---? BaSO4 + AgNO3
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DOUBLE REPLACEMENT
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Identify reaction type: 2H2O ---> 2H2 + O2
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DECOMPOSITION
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A list of elements showing that the more reactive element is higher on the list and can replace any element below it.
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ACTIVITY SERIES
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A table showing if a precipitate will form.
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SOLUBILITY TABLE
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Numbers used to balance a chemical equation.
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COEFFICIENTS
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A substance that increases the reaction rate by lowering the activation energy.
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CATALYST
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