Chemistry/Measurements
Define Chemistry
The study of Matter
Name 3 parts of an atom (and their charge and location!!)
Proton (positive in nucleus)
Neutron (Neutral/No Charge in nucleus)
Electron (negative/fly around outside of nucleus)
List all the units of pressure (and their values) that is equal to 1 Atmosphere.
101.3 kPa, 760 Torr, 760 mmHg
TRUE or FALSE: Electrons travel in perfect circles around the nucleus.
FALSE
When 1 compound breaks into two or more smaller atoms/compounds
Decomposition
Convert 13.2 km to meters
0.0132 meters
In the element, Zr - 91, what does 91 represent?
How many protons does Zr - 91 have?
The MASS NUMBER
Describe the Kinetic Molecular Theory
Everything is made up of molecules and they are always moving
State and describe the 4 types of Electron orbitals
s-orbital (sphere)
p-orbital (dumbell shape)
d-orbital (double dumbell)
f- orbital (crazy flower thing)
The equation shown below is this type of chemical reaction:
2Na + Cl2 ---> 2NaCl
Synthesis
How many significant figures are in the length of 61,000 meters?
2
Define Isotope
Element with different number of NEUTRONS
Which gas law states as Pressure Increases, the Volume Decreases?
Boyles Law
Which element has the following electron configuration: 1s2 2s2 2p63s23p4
Sulfur
Often associated with fire and explosions, this type of reaction produces CO2 and H2O.
Combustion
How many sig figs are in this number?
0.00102400
6
What symbol does an Beta Particle have?
A Alpha Particle? Gamma Ray?
beta, 4He2, gamma
Which gas law states as Volume Increases, the Temperature Increases?
Charles's Law
Write out the electron configuration for Magnesium
1s2 2s2 2p63s2
The equation shown below is an example of this type of reaction:
CaSO4 + 2K ---> K2SO4 + Ca
Single displacement
Convert 5.3 x 108 Tbytes to Megabytes
5.3 x 1014 MegaBytes
Write and balance the following nuclear equation:
Beta Decay of Mg-28?
28Mg12 -->
beta + 28 Al 13
Which gas law states as Temperature Increases, the Pressure Increases?
*Extra 300 pts.. WHY does the pressure change this way?
Gay-Lussac's Law
More temp = More movement/collisions from molecules = More Pressure
Write out the electron configuration for Palladium (Pd)
1s2 2s23p6 3s23p64s23d10 4p6 5s2 4d8
The equation show below is an example of this type of chemical reaction:
ZnI2 + AlBr3 ---> ZnBr2 + AlI3
BONUS: Balance the equation
Double Displacement