Periodic Table
What does the atomic number mean?
The number of protons and therefore electrons of an atom.
What is the Lewis Dot Structure for Nitrogen?
Mrs. Wood needs to draw this
What is a decomposition reaction?
A reaction where one molecule/compound is broken down entirely into separate components.
How many significant figures does 0.003245600 have?
7
What is a covalent molecule?
A molecule that is made up of 2 nonmetals that SHARE electrons.
What is the Lewis Dot Structure of CCl4?
Mrs. Wood needs to draw this
Balance this chemical equation:
C + SO2 --> CS2 + CO
5C + 2SO2 --> CS2 + 4CO
Convert 751289000 into scientific notation.
7.51 x 108
36P has how many protons, electrons, and neutrons?
15 protons, 15 electrons, 21 neutrons
What is the geometric shape of CH4?
Tetrahedral
What is Molar Mass?
The mass of one mole of a substance. It is equivalent to the molecular mass in grams.
What is the difference between precision and accuracy?
Precision - most decimal places
Accuracy - most close to correct
What is the electron configuration for Calcium?
1s2 2s2 2p6 3s2 3p6 4s2
What is the bond angle of a pyramidal-shaped molecule?
107o
What is the conversion from amu to grams?
1 amu = 1.66 x 10-24 g
What is 72.3oF in Kelvin?
295.5K
What is the chemical formula for carbonate?
CO32-
What is the difference between a pyramidal and trigonal planar shape?
Pyramidal has an unbonded electron pair on the central atom.
3CCl4 + 2SbF3 --> 3CCl2F2 + 2SbCl3
If a chemist has 6.24 grams of CCl2F2, how many grams of SbF3 did he use?
6.15 grams of SbF3
What is the equation for frequency?
frequency = speed of light / wavelength