What does a Lewis Dot Structure show?
How valence electrons are arranged in a molecule, and the bonding they can form
What law is correlated to balancing equations?
The law of conservation: matter is not being created or destroyed, just transformed
What is an ION, and What is an ISOTOPE?
Ion: an element that has gained or lost electrons, changing its overall charge
Isotope: An atom that has gained or lost Neutrons
What kind of bond is made between a metal and a non metal?
Ionic Bond
How many Iron atoms are in 3FeCl3
Three!
What does each dot in a Dot structure represent?
Electrons
Fill in the blanks to balance the following equation:
___Cl+ O2 ----->2Cl2O
4
Is the following an Ion or an Isotope?
Barium-140
Isotope
Potassium and Chlorine combine, making what type of bond?
Ionic
How many Chlorine atoms are in 2NaCl4?
Eight!
If your Lewis dot structure has pairs of electrons on all sides, is it reactive or unreactive?
Unreactive
Balancing the following equation:
N2+H2----> NH3
N2+3H2--->2NH3
How many TOTAL electrons does the following Ion have:
Se+2
36
What is happening to electrons in Covalent bonds?
They are being shared between two atoms evenly
How many Potassium atoms are in 5O(ArK2)3
30
What is the Lewis Dot structure of I-1
I with 8 dots around it
Balance the following equation:
KClO3---> KCl +O2
2KClO3--->2KCl + 3O2
Phosphorus and Aluminum have combined; what are their new charges?
P-3 and Al+3
What is the charge on the Atoms Calcium and Iodine after combining?
Ca+2 and I-2
How many total atoms is in the following molecule?
2H(OCl2)5
32
In a Lewis Dot Structure, what does a line connecting two atoms represent?
A shared pair of electrons in a covalent bond
Balance the following equation
Al + HCl ---> AlCl3 +H2
2Al + 6HCL --> 2AlCl3 +3H2
Xe-135
Gained for neutrons
What type of bond will two oxygen atoms form when they combine? How many electron PAIRS are they sharing?
Covalent. Two Pairs of electrons
How many total atoms are in the following molecule?
4Te(H4Na3)5
144