Density
What density would allow an object to sink in water?
Greater than 1.0g/mL
How many sig figs are in 0.04560?
4
Express 6,750,000 in scientific notation
Bonus: How many sig figs?
6.75x106
Bonus: 3
How many meters are there in a kilometer?
Which is bigger? A meter or a kilometer?
1000
A kilometer
Favorite fruity candy
Favorite chocolatey candy
Sour patch kids
Twix
Mass or weight...
Which one changes depending on the gravity?
Bonus: What is the term for a "scale" that we'll use in chemistry class?
Weight
** Mass is consistent no matter the gravity
Bonus: Balance (measures mass)
How many sig figs are in 500?
1
Express 0.0000456 in scientific notation
4.56x10-5
Convert 1.5 Km into cm
Bonus: Put your answer in scientific notation
150,000
1.5x105
Any!
** Except mystery/thriller, I think
Find the mass...
Density: 1.74g/mL
Volume: 63mL
110 g
With correct sig figs, what is 2.5 * 3.172?
7.93 --> 7.9
In standard form...
What is 5.42 x 10 0?
What is 2.4x101?
What is 7.65x10-2?
5.42
24
0.0765
Convert 1.5 Km into cm
Bonus: Put your answer in scientific notation
150,000
1.5x105
Who's my favorite musical artist
What's the main style of music that will be played in class?
** Sleeping at Last
** Musicals/Disney or Oldies
An object has the Density of 12.36 g/mL and the Mass of 6.52 g. What is the Volume?
Mass/Density = Volume
0.53 ml
How do you determine how many decimals you can go to when measuring something?
Estimate one digit past what's "known"
** EVEN ZEROS
What is 8.0 x 106 in standard form?
What is 3.4x10-2 in standard form?
8,000,000
0.034
** ___ ˚C + 273 --> __ K
What is the freezing point of water in kelvin?
What is the melting point of water in kelvin?
What is the boiling point of water in kelvin?
FP: 273 K
MP: 273 K
BP: 373 K
Favorite SLP restuarant
Wok in the Park
** If you haven't heard of/gone to Staff Meeting on Nicollet, GO.
Why don't oil and water mix?
NOT because of density. That's just the reason for them being layers.
It's due to polarity.
Where can you put a decimal to make the number 400 into three sig figs?
0.400
4.00
40.0
400.
How many zeros are in 6.22x1023?
Bonus: What is this value called in chemistry?
21
Bonus: Avogadro's number or a mole
How many seconds are there in the month of March?
Include 3 sig figs in your answer
Put the answer in scientific notation
2678400 --> 2,680,000
2.68x106
Where did I travel to this summer?
Wyoming (Bear Lodge (Devils Tower))
South Dakota (Custer St Park, Wind Cave, Badlands, Black Hills)