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.

Remove ads
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


Chapt. 1 - Timberlake

How is WEIGHT different from MASS? Weight - is a measure of the pull of gravity Ex. a man weighs 165 lbs on earth, but only 27.5 lbs on the moon
Unit for mass in metric system GRAM - 454 g = 1lb.
Significant figures In a measured number, significant figures are all the digits including the estimated digit
Measure numbers Measured numbers are obtained when one measures a quantity
How to tell what is a significant number? (4) 1. Not a zero 2. a zero between nonzero digits 3. a zero at the end of a decimal number 4. any digit in a coefficient of a number written in scientific notation
Exact numbers Exact numbers are clearly defined (60 minutes in an hour)
Round off rules (2) if four or less, round down, 5 or more, round up
Multiplication & division-significant numbers In multiplication or division, final answer contains #of significant figures as the measurement with the FEWEST significant figures Ex. 24.65 x 0.67 = 16.5155 - round to 17 (because 0.67 has just TWO significant figures)
Prefixes - trillion, billion, million & thousand 1. trillion - tera 2. billion - Giga 3. Million - MEGA 4. thousand - Kilo
Prefixes (decrease size of unit) tenth, hundredth, thousandth, millionth, billionth, trillionth, quadrillionth
tenth, hundredth, thousandth, millionth, billionth, trillionth, quadrillionth tenth-deci, hundredth-cent, thousandth-milli, millionth-micro, billionth-nano, trillionth-pico, quadrillionth -femto
cm3 - cubic centimeter-dimensions 1 cm x 1 cm x 1 cm- measures VOLUME and equals 1 mL = 1cm3 = 1cc
Mass - how is "weight" recorded? In kilograms
Density RELATIONSHIP of the MASS of object to its VOLUME
Density measurements grams per cubic centimeter (g/cm3) grams per milliliter (g/mL) or grams per liter (g/L)
6.00 divided by 0.2000 30.0 - because when dividing, the answer must have same number of significant figures as the one with fewest digits--sometimes you have to add
d = m divided by V Remember: alphabetically divide so that DENSITY = Mass divided by Volume
Add decimals Answer should have same number of DECIMALS as that having fewest decimal places
1 mL equals (write 3 ways) 1 mL = 1 cm 3power = 1cc = .001 liter
how many 3s, 3p & 3d orbitals are there? 1, 3 & 5 respectively
atomic radius Size sinks, radius says size, radius sinks to bottom
Size - rank Boron, chlorine, flourine & alumimium (look at position on chart-bottom left corner is biggest in size) flourine<boron<chlorine<aluminum
Created by: walterina4327