Polyatomic Ions
What are Polyatomic ions?
Ions that are formed when a group of atoms gains or loses electrons
What does VSEPR stand for?
Valence Shell Electron Pair Repulsion
What is Polar and Nonpolar Bond?
A covalent bond in which the electrons are shared unequally between the atoms involved.
A covalent bond in which the electrons are shared equally between the atoms involved.
Is salt an ionic compound?
Yes
What does this Formula represent? CR2O72-
Dichromate
What does the VSEPR Theory state?
Molecules will attain whatever shape keeps the valence electrons of the central atom as far apart from one another as possible.
What are Polar and Nonpolar molecules?
A nonpolar molecule is a covalent molecule in which the electrons are evenly distributed throughout the whole molecule.
A polar molecule is a covalent molecule that has an imbalance in the distribution of electrons throughout the whole molecule
What are Polar Covalent compounds?
Polar Covalent compounds can dissolve other polar covalent compounds and ionic compounds because both types of compounds contain electrical charges.
How do you write the formula for Phosphate?
PO 43-
T: A molecular shape in which a central atom is surrounded by 4 bonds with bond angles of 109 degrees.
P: A molecular shape in which a central atom is surrounded by 3 bonds with bond angles of 107 degree
What are the conditions a molecule must meet to be a polar covalent?
The molecule must have polar bonds in it.
Those polar bonds cannot be of equal strength and pull in opposite directions.
What are Nonpolar covalent compounds?
Nonpolar covalent compounds, on the other hand, can dissolve only other nonpolar covalent compounds because no electrical charges are present.
Name the first seven ions
Ammonium, Hydroxide, Chlorate, Chlorite, Nitrate, Nitrite, Acetate.
Why are the bond angles in the pyramid shape smaller than the bond angles in a tetrahedral shape?
The nonbinding electron pair in the pyramidal molecule pushes the bonding electron a little harder than they push on each other. As a result, the bonds are all pushed toward each other a little more than in the tetrahedral molecule, which has no nonbonding electron pairs.
What is the subclass compound of Polar covalent compounds?
Polar covalent compounds can dissolve other polar covalent compounds and ionic compounds because both types of compounds contain electrical charges.
Why does salt dissolve in water?
Salt is an ionic compound. Therefore, we know that it is composed of ions, which possesses an electrical charge. Since water is a polar covalently bonded molecule, it also has charges in it, even if they are only partial charges.
Name all the ions on the chart
Ammonium, Hydroxide, Chlorate, Chlorite, Nitrate, Nitrite, Acetate, Cyanide, Carbonate, Chromate, Dichromate, Sulfate, Sulfite, Phosphate.
Who invented the VSEPR theory?
Ronald Nyholm
What is the subclass compound of Nonpolar covalent compounds?
Nonpolar covalent compounds can dissolve only other nonpolar covalent compounds because no electrical charges are present.
Vegetable oil is nonpolar covalent. It has no electrical charges. Since it has no electrical charges, it cannot interact with (and therefore cannot dissolve) the table salt.