Atoms / Periodic Relations
Convert to kelvin
OC
15.9C
56.48C
273.15 K
289.05 K
329.63 K
Identify the type of reaction: CaCO₃ → CaO + CO₂
Decomposition
Suppose you have 455 grams of glucose dissolved in 750 mL of water. What is the molarity of this solution if glucose has the formula C6H12O2
3.37M
Calculate the enthalpy of formation of propane gas, given the following information:
C3H8(g)+O2----> CO2(g) + H2O(l)
Hfrxn= -2219 kJ/mol
CO2 Hf= -393.5 kJ/mol
H2O(l) Hf=-285.8 kJ/mol
-104.7 kJ/mol
Which species is considered to be the largest rodent in the world?
capybara
Arrange the following in from shortest to largest atomic radius
F, Mg, Al, Y, P
F --> P --> Al --> Mg --> Y
Determine the electronegativity difference of the N-O bond.
0.5
A gas in a sealed container at 30°C has a pressure of 3.2 atm. If the temperature is increased to 90°C at constant volume, what was the initial pressure?
3.83 atm
Calculate the energy of a wave with a wavelength of 2.30*1010 nm
8.65 x 10^27 J
Conan Gray
Identify the element with 30 neutrons and an atomic mass of 55.0 amu.
Manganese
Provide the balanced equation for: __C₃H₈ + __O₂ → __CO₂ + __H₂O
1,5,3,4
12.0 g of Li react completely. How many grams of LiOH are produced? 2 Li + 2 H2O ----> 2 LiOH + H2
41.4 g
Find all the quantum numbers for the chlorine ion
3, 1, 1, -1/2
Mention 10 Peer Leaders
Leslie, Asher, Emily, Hanna, Paulina, Aaron, Eduardo, Frida, Isabella, Mary
Formula for iron (III) sulfate:
Fe2(SO4)3
Write the electron configuration for elemental Ca.
1s2,2s2,2p6,3s2,3p6,4s2
Which species is the reducing agent in: Cu2O ------> 2 Cu + ½ O2
Oxygen
Calculate the enthalpy of formation of sulfur dioxide in the following reaction:
S(s) + O2(g)---> SO2(g)
S(s) +3/2O2(g)---> SO3(g)
2SO2(g)+O2(g)---->2SO3(g)
-296.1 kJ/mol
What was my most listened song last week
No one noticed (Extended English Version)
The Marias
Express 250.45 litres/microseconds in the unit gallons/minutes.
3,975,300,000 gal/min
What is the formal charge of the nitrogen atom, and molecular geometry in nitrate
+1, trigona planar
Determine the final volume of a gas in a balloon if 596kJ of energy was added by doing work on 4.5L gas at a constant pressure of 3.6 atm
-1629 L
In a calorimetry experiment, 50.0 g of water at 20.0°C is mixed with 50.0 g of water at 80.0°C. Assuming no heat loss to the surroundings, what is the final temperature of the mixture?
50.0 C
How many lightbulbs do I have in my apartment?
15