Alkali Metals
What is the name of the element with symbol K
Potassium!
What is redox?
A reaction that involves the loss/gain of electrons.
DAILY DOUBLE
Explain the "entity cramming" analogy for any of the gas laws it applies to (Ideal included)
DAILY DOUBLE
No credit for explaining Gay Lussac or Charles
Boyle's: As volume decreases, pressure increases (100 cows in 100 sq ft vs 100 cows in 1 sq ft)
Ideal Gas Law: As amount increases (volume held constant), pressure increases (1 vs 100 cows in a 10 ft area)
What determines an elements identity
the number of protons in its nucleus
Which is the lightest element by atomic mass?
Helium
Hydrogen!
DAILY DOUBLE
How many molecules are in 65.380g of Zn metal?
DAILY DOUBLE
6.022 x1023, Avogadro's number
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.
What are valence electrons, and what are their significance
The electrons on the outermost electron shell of the atom, they participate in bonding and determine reactivity
DAILY DOUBLE
Which group is the most reactive on the periodic table?
DAILY DOUBLE
Alkali Metals
Name a common use for lithium metal
Batteries, Antidepressants
What is the name for the first number in 4H2O, and what does it indicate
The stoichiometric coefficient, represents how many of each molecule is required in a balanced reaction
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
Explain the inaccuracy of the Bohr model
The bohr model has concentric orbits of electrons, while, in reality, electrons are more like probabilistic fields around the nucleus.
Father of Chemistry, Father of the Periodic Table (two people)
Antoine Lavosier, Dimitri Mendeleyev
Single valence electron
How many moles are in 1.98 grams of H2 gas?
0.982 moles
What law would be applied to a pressure cooker/ rice cooker heating rice
Gay-Lussac's Law (related temperature to pressure)
Come to the board, Draw out the Quantum mechanical model of the atom to the best of your ability
based on drawing
What is the most common use of cesium?
Atomic clocks, measure the resonant frequency of Cesium-133.
What color flame does potassium generate when it reacts with water?
Purple
Balance the following equation:
NaOH + H2SO4 -> H2O + NaSO4
2NaOH + H2SO4 -> 2H2O + Na2SO4
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.
Explain what is incorrect with the plum pudding model of the atom
The positive and negative charges are all condensed into a soup, which is inaccurate
What does the Higgs Boson do?
Gives everything its mass