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

Biology 101 Exam 1

CH 2.3 The Nature of Chemical Bonds

TermDefinition
What is a molecule? A group of atoms held together by energy in a stable association
What is a compound? When a molecule contains atoms of more then one element.
Explain the difference between ionic and covalent bonds. Ionic bonds result when atoms with opposite charges attract each other. Covalent bonds form when two atoms share one or more pairs of valence electrons.
What is a chemical reaction? The formation and breaking of chemical bonds. It involves the shifting of atoms from one molecule or ionic compound to another, w/o any change in the number or identity of the atoms.
What factors can speed up or slow down a chemical reaction? Temperature, Concentration of reactants and products, and Catalysts.
Example of ionic bonds NaCl sodium Chloride or K+ and Na+
Example of covalent bonds. H hydrogen gas or O Oxygen gas
What are products and reactants? Original molecules before the reaction starts as reactants, and the molecules resulting from the chemical reactions as products.
Temperature Factor Heating the reactants increases the rate of a reaction because the reactants collide with one another more often.
Concentration of reactants and products factor Reactions proceed more quickly when more reactants are available allowing more frequent collisions. An accumulation of products typically slows the reaction and, in reversible reactions, may speed the reaction in the reverse direction.
Catalysts Factor Is a substance that increases the rate of a reaction. In living systems, proteins called enzymes catalyze almost every chemical reaction.
Created by: usn3gen
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