Save
Upgrade to remove ads
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

Chapter 2

Vocab Words

QuestionAnswer
when a reverse actions proceed at the same rate,the quantities of reactants and products remain constant although not necessarily equal Chemical Equilibrium
sum of the protons and neutron in an atom Mass Number
forms of an element with different numbers of neutrons Isotopes
the transformation of water vapor to liquid water release heat Exothermic
molecules or ions that acquire protons during chemical reactions and the hydrogen ion concentration of water Bases
substances that give up protons during chemical reactions and raise the hydrogen ion concentration of water Acids
strong attracting that bind atoms together Chemical bonds
the proposition in Earths history Chemical equation
The atomic number given as a subscript of each element symbol in the table Atomic Number
Electrons move around atomic nuclei in specific regions Orbitals
Orbitals in turn that are grouped into levels Electrons shells
the number of unpaired electrons found in an atom Valence
substances that are held together by covalent bonds Covalent Bond
negatively charged ion anion
An atom that carries a charge Ion
indicates the number of types of atoms in a molecule Molecular Formula
What indicates atoms bond together Structural Formula
one substance is combined with others or broken down into another substance Chemical reaction
the number 6.022 x 10^23 just as the unit called the dozen refers to the number 12 or the unit million refers to the number Mole
is the sum of the mass number of all the atoms in a molecule Molecular weight
the number of moles in a substance present per liter of solution Molarity
the overall distribution of charge asymmetrical Polar
substance that does not interact with water Hydrophobic
Binding between like molecules Cohesion
binding between unlike molecules Adhesion
makes water surface act as if it had an elastic membrane surface tension
the energy required to change 1 gram of it from a liquid to gas-is higher than that are liquid to gas-is higher than that most molecules that are liquid at room temperature Heat of vaporization
lower the hydrogen ion concentration of water Bases
substances that give up protons during chemical reactions and raise the hydrogen ion concentration of water Acids
the concentration of protons in a solution with a logarithmic notation pH
compounds that minimize variation in pH Buffers
stored energy Potential enrgey
transferred energy Heat
states energy is conserved and energy cannot be created or destroyed ,But only transferred and transformed 1st law of thermodynamics
Created by: ChajazD
Popular Biology 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