Physical or Chemical? Porque no los dos
Moles, Moles, Moles
All about Isotopes!
Mass, Volume, and Density
Collections of Substances
100
Physical change, Chemical Change, or Both?
A grape is left out in the sun and after several hours in the swelting California heat, it shrivels up into a raisin.
What is a physical change?
100
What is the number of particles in one mole?
6.022 x 10^23 particles
100
What distinguishes different types of atoms that are the same element but different isotopes?
The number of neutrons
100
What is the molecular mass of BF3?
67.806 u
100
A collection of atoms that all have the same number of protons
what is an element?
200
Physical change, Chemical Change, or Both?
Mr. B is heading to a rave and wants show the world how bright Chestertonians are. He proceeds to buy 1000 glow sticks and spends 4 hours cracking them and assembling them into a radiant, neon armor. 
.
What is a chemical change?
200
Determine the number of moles of the following 286.25 g of Al2(CrO4)3?
0.71216 moles
200
What are the two scientific ways to write the name for a carbon that has 12 protons, 12 electrons, and 13 neutrons two different ways.
C-13 or carbon-13
200
How could you rewrite the equation for density to calculate the radius of a sphere when given the density, mass, and height?
The formula for the volume of a cylinder is (pi)r2h.
sqrt(m/(p*pi*h))
200
A collection of a large amount of one molecule.
What is a compound?
300
Roasting a marshmallow over the fire
Chemical
300
What is the mass in grams of 7.4226 x 10^22 atoms Au?
24.277 g
300
If you are given 100.00 g of Carbon, what is the mass of only the carbon-13 atoms?
(The relative abundance of C-12 is 98.93%, while the relative abundance of C-13 is 1.078%).
1.078 g
300
Another name for a homogenous mixture, which is a combination that substances that do not chemically react and have a uniform distribution.
What is a solution?
400
Physical change, Chemical Change, or Both?
As Autumn approaches, Ms. Hynes, Ms. Montalbine, and Ms. Silloway want to embrace the cozy weather and decide to get together for a Saturday of crafting, reading, and autumnal cooking. For 50 pts each, correctly identify whether the following is a physical change, chemical change, or both:
Brewing Tea
Carving a Pumpkin
Pressing Apples for Cider
Lighting a Scented Candle
Watching the leaves change color on the trees
Making paper mache decorations
Both
Physical
Physical
Both
Chemical
Physical
400
Determine the mass in kilograms of 2.6 mol of potassium thiocyanate, KCNS?
0.25 kg
400
How many neutrons does Xenon-136?
82
400
What is the molar mass of Ca(NO3)2?
164.09 g/mol
400
A mixture of particles that are size and where the particles are so large that they fall to the bottom of a vessel due to gravity.
What is a suspension?
500
Physical change, Chemical Change, Both or Neither?
Communion wine is made by the following process:
(1) Harvesting the grapes and sorting them based on color and size.
(2) Crushing and pressing to release the juices, color extracts and tannins.
(3) Adding a wine yeast starter to begin fermentation
(4) Filtering the wine to remove particles
(5) Sanitizing the wine bottle by oven drying the bottle at 350F for 15 minutes after washing.
(1) Neither
(2) Physical
(3) Chemical
(4) Physical
(5) Physical
500
Approximately how many carbon-13 atoms are present in 2.22 kg of CCl4?
(The relative abundance of C-12 is 98.93%, while the relative abundance of C-13 is 1.078%).
9.8 x 10^22 carbon-13 atoms
500
What is the purpose of the neutron?
To act as a glue for the nucleus by helping create space between protons so they do not repel each other.
500
What is the molecular mass of Aspartame, C14H18N2O5, the artificial sweetner found in diet coke?
294.30 u
500
The phenomenon that allows particles to remain suspended in a liquid medium.
What is Brownian motion?