Units 1 & 2
How many centigrams are in a gram?
100 cg
What element is abbreviated as Fe?
Iron
What layer of the atmosphere do humans live in?
Troposphere
What type of bonding always includes a hydrogen?
Hydrogen Bonding
The mole is a _____ unit
Counting
How many significant figures are in 4.256
4 sig figs
What family on the periodic table does Sulfur belong to?
nonmetals
What is the formula for dihydrogen monoxide
H2O
MgCl2
Ionic Bonding
(metal + nonmetal)
What charge does an electron have?
Negative charge
What type of mixture is milk?
Homogeneous (specifically a colloid)
How many neutrons does Oxygen have?
6 neutrons
Balance the following reaction
Li2O → Li + O2
2Li2O → 4Li + O2
What is the chemical formula of Lithium Bicarbonate?
LiHCO3
How many atoms are in HCO3
5 atoms
What are 2 out of the 5 signs of a chemical change?
Release of light
Smell
Temperature
New Color
Formation of a Precipitate
What is the unabbreviated electron configuration of Neon?
1s22s22p6
What is the name for NBr5
Nitrogen Pentabromide
The empirical formula is C3H5O2. The molar mass of adipic acid is 146g/mol. What is the molecular formula
C6H10O4
What family does Neon belong to?
Noble Gases
Covert 10456 g to kg
10.456kg
How are Atomic Radius and Electronegativity related/different.
Atomic Radius decreases as Electronegativity increases and vice versa
As an atomic radius decreases in begins to gain more electrons in a tighter pull
What type of reaction is
Li2O → Li + O2
Decomposition Reaction
What is the empirical formula of 55.3% K, 14.6% P and 30.1% O
K3PO4
Which type of radiation from Earth is the long-wave radiation absorbed by greenhouse gases?
Infrared