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.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
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 I - Ch 5 Vocab

acid a molecular compound that dissolves in solution to form H+ ions. Acids have the ability to dissolve some metals and will turn litmus paper red
atomic element an element that exists in nature with single atoms as the basic unit
ball-and-stick model representation of atoms as balls and chemical bonds as sticks
binary acid an acid containing only hydrogen and a nonmetal
binary compound a compound containing only two different kinds of elements
chemical formula a way to represent a compound. indicates the elements present in the compound and the relative number of atoms of each element
empirical formula a formula for a compound that gives the smallest whole-number ratio of each type of atom
formula mass the average mass of the molecules(or formula units) that compose a compound.
formula unit the basic unit of ionic compounds; the smallest electrically neutral collection of cations and anions that compose the compound
ionic compound a compound formed between a metal and one or more nonmetals
law of constant composition a law stating that all samples of a given compound have the same proportions of their constituent elements
molecular compound a compound formed from two or more nonmetals; have distinct molecules as their simplest identifiable units
molecular element an element that does not normally exist in nature with single atoms as the basic unit; these elements usually exist as diatomic molecules - 2 atoms of that element bonded together - as their basic units
molecular formula a formula for a compound that gives the specific number of each type of atom in a molecule
molecular model three dimensional representation of molecules; to represent compounds
oxyacid an acid containing hydrogen, a nonmetal, and oxygen
oxyanion an anion containing oxygen; most polyatomic ions are oxyanions
polyatomic ion an ion composed of a group of atoms with an overall charge
space-filling model atoms fill the space between each other to more closely represent our best idea for how a molecule might appear to visible scale
structural formula a two-dimensional representation of molecules that not only shows the number and type of atoms, but also how the atoms are bonded together.
transition metals the elements in the middle of the periodic table; lose electrons in their chemical reactions
Created by: droesener