Theory
F=MA
What is newton's second law?
Avogadro's first name
What is Amedeo?
How many atoms are in 2.1 moles of water?
3.8*1024 atoms
Convert 18.3L to gallons.
4.834 gallons
The first gravitational wave was detected in September 2015 by LIGO. Small disturbances to the LIGO laser were picked up by extremely sensitive detectors, and the waves are attributed to two colliding neutron stars. What is 2+2?
What is the number 4?
Causes water to expand as it freezes
What are hydrogen bonds?
This person discovered the real gas law
Who is Johannes Van der Waal?
A balloon with a volume of 12.2 L is put into a freezer set to a temperature of -43C. It then shrinks to a volume of 8.3 L. What was the initial temperature, and which gas law did you use?
Charles' law, 338 K
An object with a mass of 0.23kg, is dropped into a graduated cylinder filled of water. The water level, initially 183 ml, is now 0.845 cup. What is the density of the object in kg/m^3?
13529 kg/m^3
14000 sig figs
At PTMS, which building was built first, the C building or the B building?
B building
The random motion of particles
What is Brownian motion?
Established the kinetic molecular theory
Who are Rudolf Clausius and James Clerk Maxwell?
18.7 moles of chlorine is added to a pool, giving it a concentration of 0.00935 M. It then rains, which adds 3 liters of water to the pool. What was the initial volume of the pool?
2000 L
A ball with a diameter of 12.407cm and a weight of 2.00N is floating in a pool. What volume of water does it displace?
204 cm^3 or 0.000204 m^3
The date lockdown started
What is March 13th, 2020?
Is moist air denser or dry air denser? Why?
Dry air, N2 mass > H2O mass
This scientist, as well as having a gas law named after him, also discovered the composition of a water molecule.
Who is Gay Lussac?
10 kg of a mysterious solution has a mass/mass concentration 37%. What is the mass of the solute?
3.7 kg
Given that 50 mL of 3M HI was present, what volume would be needed to change the concentration to 0.75M?
150 ml
How many events will there be in DIV B at regionals? Include all trial/medal-only events
29
The ideal gas laws are valid only in these processes
What are adiabatic processes?
The work written by Archimedes that includes the Archimedes principle.
What is On Floating Bodies?
What is the ppm concentration of O2 in a mixture of gases if there are 23 molecules of O2 for every 207 molecules of gas?
111,111 ppm
A balloon weighing 65 grams has a volume of 408,000 cm^3. If it is filled with helium, how many grams can it support without falling? Air density is 0.00129 g/cm^3 and helium density is 0.0001785 g/cm^3. Express your answer in N.
3.86 N
In the early 20th century, through redshift, Hubble discovered that the universe was expanding. Currently, the expansion is attributed to dark energy, a mysterious force that interacts with baryonic matter, yet it can not be directly detected. How many times did the letter "u" appear in this paragraph?
8