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

Ch 2 Chem

Chemistry

QuestionAnswer
Matter Has mass, occupies space
3 states of matter liquid, solid, gas
Atomic Structure Nucleus, Electrons, Protons
Nucleus Protons (+) , Neutrons (no change)
Electron (-) Orbiting the nucleus, in shells (orbitals, have a negative electrical charge
Protons (+) have positive electrical charge
Neutrons are neutral, uncharged
Atomic Number number of protons (smaller #)
Atomic Weight (Mass) number of protons and neutrons
Isotopes variation in the # of neutronsHalf lifetime it takes for half of the element to decay
Atomic Symbol Letter abbreviation1st letter capitalized2nd letter lower case
Electrons shells outer rings that circle the atom
Chemical Bonding taking smaller to make larger (anabolic)
Ionic Bonding gain and loss of an electrons ie..Na + Cl = NaCl
Ion (electrolytes) Charged element
Cation has a positive charge ie...Na+
Anion has a negative chargeie...Cl-
Covalent Bonding sharing of electrons between 2 elements
Non polar equal sharing of e-
Polar unequal sharing of e-
Hydrogen Bonding H bonds to either O or N that is already in a molecule or compound
Molecule 2 like elements coming together
Compound 2 or more different elements
Chemical Reaction metabolism- building up or breaking down
Potential energy stored energy
Kinetic energy energy being used
Factors effecting chemical reaction rates 1. Temperature 2. Size 3. Concentration 4. pH 5. Biological Catalyst (enzyme)
Acid release a hydrogen (H+) ion (proton)
Base accepts hydrogen ion proton (H+)release hydroxylions (OH-)
Buffers (resist small change in the pH of solutions)weak acid or weak base that will either release or accept hydrogen ions to maintain the pH with a range
Created by: cortney0217
Popular Anatomy 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