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

Gen Chem Chapter E

QuestionAnswer
Most important part of a numerical answer The unit
SI Units Seven base units in which all other units are derived. A different base unit is used for each quantity.
Length unit meter (m)
Mass unit kilogram (kg)
Mass definition quantity of matter
Weight definition a measure of force exerted by the gravitational pull on an object.
Time unit Second (s)
Temperature definition a measure of the average kinetic energy of the particles in a sample.
Temperature units Celsius, Kelvin and Fahrenheit
Speed (rate) the ratio of distance traveled per unit of time. Meters/second
Volume (V) Length cubed
Density (d) mass/volume
Molecular weight (MW) mass/amount
Volume= length x width x height
Density definition the mass of a substance in a given volume
Density formula d=m/v
Exact numbers values we know exactly
Inexact numbers values that have uncertainty
Accuracy refers to the proximity of a measurement to the true value of a quantity
Precision refers to the proximity of several measurements to each other.
Significant figures Digits that are measured and "non-place holding"
4 Sigfig rules 1. All nonzero digits are significant. 2. Zeroes between 2 sigfigs are themselves significant. 3. Zeroes at the beginning of a number are never significant. 4. Zeroes at the end of a number are significant if a decimal point is written in the number.
Addition/Subtraction Sigfig rule Answers are rounded to the least significant decimal place
Multiplication/Division Sigfig rule Answers are rounded to the number of digits that corresponds to the least number of sigfigs.
Energy definition the capacity to do work
Work definition the action of a force applied across a distance
The energy of the universe is: conserved
Potential Energy Energy associated with storage
Kinetic Energy Energy associated with movement
SI unit of energy Joule (J)
Law of conservation of energy Energy can neither be created nor destroyed. Can be transferred.
Exothermic Releases energy, gives off heat
Endothermic Absorbs energy, takes in heat
Conversion factors Relationships between 2 units
Created by: user-2057611
 

 



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