Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how



Activity Series a list of elements in order of decreasing activity; the activity series of halogens is Fl, Cl, Br, I
Catalyst a substance that increases the rate of reaction by lowering the activation-energy barrier; the catalyst is not used up in the reaction
Chemical Equation an expression representing a chemical reaction; the formulas of the reactants (on the left) are connected by an arrow with the formulas for the products (on the right)
Coefficients a small whole number that appears in front of a formula in a balanced chemical equation
Combination Reaction a chemical change in which an element or a compo9und reacts with oxygen, often producing energy in the form of heat and light
Combustion Reaction a chemical change in which an element or a compound reacts with oxygen, often producing energy in the form of heat and light
Decomposition Reaction a chemical change in which a single compound is broken down into two or more simpler products
Double Replacement Reaction a chemical change that involves an exchange of positive ions between two compounds
Half Reaction an equation showing either the oxidation or the reduction that takes place in a redox reaction
Ionic Equation a chemical equation where the electrolytes in aqueous solution are written as dissociated ions
Balanced Equation a chemical equation in which mass is conserved; each side of the equation has the same number of atoms of each element
Net ionic equation an equation for a reaction in solution showing only those particles that are directly involved in the chemical change
Oxidation a process that involves complete or partial loss of electrons or a gain of oxygen; it results in an increase in the oxidation number of an atom
Oxidation Number a positive or negative number assigned to an atom to indicate its degree of oxidation or reduction; the oxidation number of an uncombined element is zero
Oxidizing agent the substance in a redox reaction that accepts electrons; in the reaction, the oxidizing agent is reduced
Redox reaction another name for an oxidation-reduction reaction
Reducing agent the substance in a redox reaction that donates electrons; in the reaction, the reducing agent is oxidized
Reduction a process that involves a complete or partial gain of electrons or the loss of oxygen; it results in a decrease in the oxidation number of an atom
Single replacement reaction a chemical change in which one element replaces a second element in a compound; also called a displacement reaction
Skeleton equation a chemical equation that does not indicate the relative amounts of reactants and products
Spectator ion an ion that is not directly involved in a chemical reaction; an ion that does not change oxidation number or composition during a reaction
Synthesis A+B->AB
Decomposition AB->A+B
Single Replacement A+BC-> B+AC
Double Replacement AB+CD->AD+CB
Combustion A+O2->B
Oxidation is the ____ of electrons loss
Reduction is the ____ of electrons gain
Substance reduced is the ______ agent oxidizing
Substance oxidized is the ______ reducing
Balancing Redox Reactions BOHEC
Actual yield The quantity of a product that is obtained from a chemical reaction
Atomic mass average mass of atoms of an element, calculated using the relative abundance of isotopes in a naturally-occurring element
Avogadro's number Avogadro's number is the number of particles found in one mole of a substance 6.02x10^23
Empirical formula smalles whole # ratio
Excess reactant
Limiting reactant
Molar mass The mass of one mole of a substance, usually expressed in grams or kilograms g/mol
Mole a chemical mass unit, defined to be 6.022 x 1023 molecules, atoms, or some other unit.
Molecular formula An expression which states the number and type of atoms present in a molecule of a substance (find factor and multiply by empirical formula)
Mole ratio ratio between the amounts in moles of any two compounds involved in a chemical reaction
Percent composition percentage by mass of each element in a compound
Percent yield the experimental yield divided by theoretical yield multiplied by 100% actual yield/theoretical yield
Representative particle
Stoichiometry the study of the relationships or ratios between two or more substances undergoing a physical or chemical change (chemical reaction)
STP Standard Temperature and Pressure: 273 K, 1 atm
Theoretical Yield the quantity of a product obtained from the complete conversion of the limiting reactant in a chemical reaction
Experimental % COmp Mass of decomposed sample/ mass of sample
Theoretical % Comp Atomic mass of elements/ total mass of compound
Created by: AlanaR



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards