The Atom
Ionic Bonding
Covalent Bonding
Chemical Equations
The Mole
100

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.

100

What types of elements involve ionic bonds?

Metals and Non-metals

100

What type of element is involved in covalent bonding?

Non-metals

100

What are the starting material in a chemical equation referred to as? 

reactants

100

What is the unit of mole?

mol

200

What is the total number of electrons that can be held in a p orbital? 

6

200

What is the ion of Na?

Na+

200

How many electrons are found in a double bond?

4

200

What do the letters in parentheses represent in a chemical equation? 

The state of the reactant or product.

200

What is Avogadro's constant?

6.02 x 1023

300

What is the short-hand electron configuration for Calcium? 

[Ar] 4s2

300

What is a polyatomic ion?

Ions that contain more than one atom which have an overall charge. 

300

Give an example of an element in the PT that forms a triple bond when it bonds to itself?

Any element from group 15.

300

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. 

300

What is the molar mass of NH3?

17g/mol 

400

What are the shapes of the s, p, and d orbitals?

s = sphere

p = dumbbell

d = donut shaped with dumbbells


400

What is the ionic compound that is formed when Lithium and chlorine form a bond?

LiCl

400

How many lone pairs are found on the oxygen of a water molecule?

2 lone pairs

400

Balance the following chemical equation:

H  +    O --->  H2O

2H  +    O --->  2H2O

400

Calculate the number of chlorine atoms in 4.5 mol of CCl4

1.08 x 1025

500

What is the long-form electron configuration for Chromium?

1s22s22p63s23p64s13d5

500

What is the ionic compound that is formed when aluminum and oxygen form a bond?

Al2O3

500

Briefly describe the bonding for the molecule HCN.

Hydrogen bonds singularly with carbon and nitrogen has three bonds with carbon. 

500

Balance the following chemical equation:

C6H12O +   O2   -->  CO2  +  H2O

C6H12O +   6O2   -->  6CO2  +  6H2O

500

What is the mass of 6.5 mol of K2O? 

611g