Alkali Metals
Which alkali metal reacts the most violently with water?
Caesium
Is NH3 (ammonia) an arrhenius base?
No, it doesn't (by itself), increase the OH- concentration in the water
Pressure increases
What is the most common isotope of uranium that is found in almost all ores
U-238
How many valence electrons does bromine have?
7
What is a common use for caesium?
Atomic clocks
What reaction happens when equal parts of an acid and base is mixed together
Neutralization
Explain Boyle's law in any way you want
Pressure is inversely proportional to volume, as volume decreases, pressure increases, as volume increases, pressure decreases.
If the atomic number of Uranium is 92 and the specific isotope present is 238, how many neutrons are present in the U-238 nucleus.
146
The sea of electrons allows for the passage of electricity through the metal
Why did the hindenburg explode?
Hydrogen gas is explosive and flammable, which caused the airship to explode
What is the makeup of aqua regia, and why is it so special
1 part nitric acid to 3 parts hydrochloric acid, dissolves gold
Which factor is not considered in the three basic gas laws, but is included in the ideal gas law?
n, the amount of substance/gas that is present in the vessel at any given time
Why did dropping all the control rods in Chernobyl speed up, rather than slow down the reaction
The graphite tips entered before the cadmium core, and got stuck, accelerating the reaction out of control
Father of the atomic bomb
J Robert Oppenheimer
Why are alkali metals not used in construction?
They are too soft, not rigid enough, and they cannot withstand rain
Explain the Bronsted-Lowry definition of acids and bases in your own words
BL acids donate protons in solutions, BL bases accept protons in solutions
What law would be applied to a pressure cooker/ rice cooker heating rice
Gay-Lussac's Law (related temperature to pressure)
How do reactors control nuclear fuel, and what are these controls made of
Control rods, they are made of neutron absorbing cadmium
The high expense of enriching U-238 to U-235
Why are alkali metals not shiny when exposed to air
they develop an oxide layer that hides the shine
Name the acid/base that makes up drain cleaner
Sodium Hydroxide (NaOH)
What does the R stand for in the Ideal Gas Law?
R is the ideal gas constant, which works out the units on both side of the equation, acting as a corrective factor to allow us to do calculations, rather than arbitrary predictions.
Barium and Krypton?
What is the crystal structure of polonium?
simple cubic