Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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. Your email address is only used to allow you to reset your password. See 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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

Chemistry II

Chemistry Review II

TermDefinition
Catalyst A substance that speeds up a chemical reaction by reducing the activation energy needed.
Reactants The substances on the left side of a chemical equation
Nucleus The part of the atom that gives it its mass
Ductile Metals can be drawn into thin wires because they are ______
Metals Elements to the left of the zigzag line on the Periodic table
Hydrogen there are 2 atoms of ____ in a molecule of water
Compound Two or more different elements chemically bonded
Malleable Metals can be hammered into thin sheets because they are ___
Positive A nucleus has this type of charge
Yields The arrow in a chemical equation
Water A surprising byproduct of a burning candle
Molecule 2 or more atoms chemically bonded
Balanced A chemical equation with the same atoms before and after the reaction
Homogeneous A mixture that appears to be just one substance
Subscript A # that cannot be changed when balancing chemical equations
Endothermic A reaction in which heat energy is drawn in
Precipitate A solid that forms out of 2 liquids reacting
Isotope Atoms of the same element with different #'s of neutrons
Family Elements found in a column on the Periodic table
Alkali Metals The family with the most highly active solids
Proton What is the positive subatomic part of an atom
Neutral What type of charge does a neutron have?
Matter A word that refers to all the substance in the universe
Sodium A deadly element that is a part of the salt molecule
Coefficients The numbers that can be changed to balance a chemical equation
Valence The # of electrons on the outer energy shell of an atom
Chemical Reaction Something that must happen to form a compound
Metalloids Elements that have properties of both metals and non metals
Period Elements who’s atoms all have the same # of energy rings
Molecule At least 2 atoms chemically bonded
Periodic Something with a regular repeating pattern is also called __________
Democritus The first person to propose the idea of the atom
Rutherford His experiment showed that atoms are mostly empty space
Thomson His experiment gave evidence of electrons
Mixture 2 or more substances mixed but not chemically bonded
NobleGases Elements in family 18 are called _________
Transmutation When an atom decays and becomes another element
Halflife The amount of time it takes half of a radioactive sample to decay
Created by: coach_fletcher
Popular Science sets

 

 



Voices

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:
Retries:
restart all cards