Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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

Chem Mod 09

Apologia Chemistry Module 9

Polyatomic ions Ions which are formed when a group of atoms gains or loses electrons
Ammonium NH₄⁺
Hydroxide OH⁻
Chlorate ClO₃⁻
Chlorite ClO₂⁻
Nitrate NO₃⁻
Nitrite NO₂⁻
Acetate C₂H₃O₂⁻
Cyanide CN⁻
Carbonate CO₃²⁻
Chromate CrO₄²⁻
Dichromate Cr₂O₇²⁻
Sulfate SO₄²⁻
Sulfite SO₃²⁻
Phosphate PO₄³⁻
VESPR theory (valence shell electron pair repulsion) Molecules will attain whatever shape keeps the valence electrons of the central atom as far apart from one another as possible
With 2 atoms or 2 groups of electrons around the central atom, the shape is _______ linear bond angle of 180°
With 3 groups of electrons around the central atom, the shape is _______ trigonal bond angle of 120°
With 4 groups of electrons around the central atom, the basic shape is _______ a tetrahedron
With every non-binding pair of electrons, the bond angle in the tetrahedron shape becomes (smaller, larger) smaller
Purely covalent bond A covalent bond in which the electrons are shared equally between the atoms involved (identical atoms)
Polar bond A covalent bond in which the electrons are share unequally between the atoms involved (different atoms)
A polar covalent molecule has _______ bonds of _______ strength that pull in _______ directions. polar equal opposite
Polar covalent compounds can dissolve ..... ... polar covalent compounds AND ionic compounds (both contain electrical charges)
Purely covalent compounds can dissolve ... ... only purely covalent compounds (no electrical charges are present)
Created by: thomas.macri



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:
restart all cards