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

Biology 2.1 and 2.2

TermDefinition
Atom The smallest basic unit of matter
Element On particular type of atom, and it can't be broken down into a simpler substance by ordinary chemical means
Compound A substance made of atoms of different elements bonded together in a certain ratio.
Ion An atom that has gained or lost one or more electrons
Ionic bond What is formed through the electrical force between two oppositely charged ions.
Covalent bond What form when two atoms share a pair of electrons
Molecule Two or more atoms held together by covalent bonds.
Hydrogen bond An attraction between a slightly positive hydrogen atom and a slightly negative atom, often oxygen or nitrogen
Cohesion The attraction between molecules of a substance
Adhesion The attraction among molecules of different substances is called adhesion
Solution Is a mixture of substances that is the same throughout - it is a homogeneous mixture
Solvent The substance that is present in the greater amount and that dissolves the other substance
Solute A substance that dissolves in a solvent
Acid A compound that releases a proton when it dissolves in water
Bases Compounds that remove positive hydrogen atoms from a solution
pH What a solutions acidity is measured in
Created by: albricha7550
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