What is the difference between the planetary model and the quantum model of the model?
The planetary model describes electrons orbiting the nucleus at fixed energy levels. The quantum model describes electrons located in 3D spaces known as atomic orbitals.
What types of elements involve ionic bonds?
Metals and Non-metals
What type of element is involved in covalent bonding?
Non-metals
What are the starting material in a chemical equation referred to as?
reactants
What is the unit of mole?
mol
What is the total number of electrons that can be held in a p orbital?
6
What is the ion of Na?
Na+
How many electrons are found in a double bond?
4
What do the letters in parentheses represent in a chemical equation?
The state of the reactant or product.
What is Avogadro's constant?
6.02 x 1023
What is the short-hand electron configuration for Calcium?
[Ar] 4s2
What is a polyatomic ion?
Ions that contain more than one atom which have an overall charge.
Give an example of an element in the PT that forms a triple bond when it bonds to itself?
Any element from group 15.
When balancing chemical equations, subscripts cannot be changed or altered. Why is this?
Changing the subscript actually changes the composition of the substance; therefore, it cannot be changed.
What is the molar mass of NH3?
17g/mol
What are the shapes of the s, p, and d orbitals?
s = sphere
p = dumbbell
d = donut shaped with dumbbells
What is the ionic compound that is formed when Lithium and chlorine form a bond?
LiCl
How many lone pairs are found on the oxygen of a water molecule?
2 lone pairs
Balance the following chemical equation:
H2 + O2 ---> H2O
2H2 + O2 ---> 2H2O
Calculate the number of chlorine atoms in 4.5 mol of CCl4.
1.08 x 1025
What is the long-form electron configuration for Chromium?
1s22s22p63s23p64s13d5
What is the ionic compound that is formed when aluminum and oxygen form a bond?
Al2O3
Briefly describe the bonding for the molecule HCN.
Hydrogen bonds singularly with carbon and nitrogen has three bonds with carbon.
Balance the following chemical equation:
C6H12O6 + O2 --> CO2 + H2O
C6H12O6 + 6O2 --> 6CO2 + 6H2O
What is the mass of 6.5 mol of K2O?
611g