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Unit 5 Test (Chemistry)
Terms in this set (26)
When drawing a Lewis structure which electrons are drawn or shown?
A line or hyphen in a Lewis dot structure indicates this
A single bond or a pair of shared electrons
How do you determine the number of valence electrons an element has?
By looking at the group number for groups 1 & 2, for groups 13-18 take the group number and subtract 10.
What is the name of the rule that states most atoms desire to reach 8 valence electrons?
The Octet Rule
How do you determine which element goes in the center when drawing Lewis structures?
If carbon is in the bond, carbon goes in the middle otherwise it is the least electronegative element.
What are the two types of elements involved in covalent bonding?
Nonmetal and nonmetal
A nonpolar covalent bond is unlikely when two atoms of different elements join because the atoms are likely differ in
What is the weakest out of the following bonds: ionic, polar covalent, or nonpolar covalent?
Non polar covalent
When naming covalent compounds list the 1-10
1-Mono 2- di 3- tri 4- tetra 5- penta 6- hexa 7- hepta 8- octa 9- nona 10- deca
The name for KBr is potassium monobromide
False, it is an ionic compound since it is a metal and a nonmetal, prefixes are not used in ionic compounds
What is the name for a positive ion? Most metals form this in an ionic bond.
How are metals with multiple cations indicated when naming ionic compounds?
Using roman numerals in parenthesis
In an ionic compound most nonmetals will form this, a negative ion.
When writing the chemical formula for ionic compounds the overall charge of the formula should always be
Neutral (charge of 0)
Are all examples of what?
What is the chemical formula for Potassium Sulfide?
What is the formula for Magnesium Sulfate ?
What is the formula for Silver (I) oxide?
What is the formula for
Lead (II) Sulfate?
What is the formula for Aluminum hydroxide?
What is the name of Na2O?
What type of bonding will occur if the electronegativity difference between two elements is 2.5?
What type of bonding refers to a "sea" of electrons that flows freely around a positively charged nuclei?
What is the Correct name for FeCO3?
Iron (II) Carbonate
In what state of matter will NaCl conduct electricity?
Sodium Bicarbonate (baking soda) has many uses, including teeth whitening, relieves heartburn and treats canker sores. What is the formula for Sodium Bicarbonate?
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