Writing Covalent Formulas
When writing a chemical formula, what two things will be on one?
Chemical symbol representing the atom/element
Subscripts - indicating the number of atoms for that representative element
What numbers represent the following prefixes
Mono
Tetra
Hepta
Deca
Mono - 1
Tetra - 4
Hepta - 7
Deca - 10
What do the dots represent in a Lewis Dot Structure?
Valance Electrons
When determining the molecular geometry of a molecule, what part of the molecule helps us determine what shape it will take?
The center of the atom
What periodic trend is responsible for the different bonds and intermolecular forces?
Electronegativity
What is the chemical formula for Nitrogen Monoxide
NO
When naming covalent compounds what is the rule for the first element and the last element?
First element keeps its original name
Second element ends in -ide
What is the Lewis Dot Structure for As
When looking at the central atom what two things helps us determine the shape the atom will form?
Shared pairs (bonds) -
Unshared pairs/lone pairs (two pair dots) ..
Which intermolecular force is present in every atom because of their electrons?
London Dispersion
What is the chemical formula for Dicarbon Hexahydride?
C2H6
What is the one exception when we do not use prefixes when naming covalent compounds?
When the first element only has one atom
What is the Lewis Dot Structure for BH3
H-B-H
H
What is the molecular geometry of CO2
Linear
Which intermolecular force is at play between covalent molecules
Dipole-Dipole
What is the chemical formula for Pentasulfur Octabromide
S5Br8
What is the name of the covalent compound Se4Br8
Tetraselenium Octabromide
What is the Lewis Dot Structure of SiO2
O=Si=O
What is the molecular geometry of SH2
Bent
Which intermolecular force occurs when Hydrogen is bonded to N, O, or F
Hydrogen Bond
What is the chemical formula for Heptanitrogen Decaflouride
N7F10
What is the name of the covalent compound C6H10
Hexacarbon Decahydride
What is the Lewis Dot Structure of NCl3
..
Cl-N-Cl
Cl
What is the molecular geometry of SO3
Trigonal Planar
Lists the types of intermolecular forces in order of decreasing strength. (High strength to low strength)
Hydrogen bonds, dipole-dipole, London Dispersion