Ions
Magnessium bromide is an ionic compound with the chemical formula AlCl3 What is the 3 called?
What is a subscript.
A combination of symbols that show the ratio of elements in a compound
What is chemical formula
In what state of matter do ions conduct electricicty?
What is liquid The ions in soild cyrstals are tightly packedand cannot move. If the ions cannot move there is no current.
A molecular compound is made up of nonmetals and nonmetals or metalloids.
What is a compound that is composed of molecules or is called covalent molecules.
C6H12O6 is an example of ___________ bonds.
What is covalent bonds
When an atom loses an electron it becomes a_______
What is positive ion
How many atoms total are in the formula: CaF2
What is three; one calcium and two fluorine
The attraction of a postive and negative ion (metal and nonmetal/metalloid) results in a___________________________
What is ionic bond
When electrons are ___________________between two atoms, a covalent bond is formed
What is shared
Identify a covalent molecule.
Multiple answers: CO2 , NH3 teacher can check you answer
An ionic bond is__________
What is the attraction of oppositely charged ions made up of at least one metal and one nonmetal.
2 H2 + O2 ----> 2H2O; What are the reactants? What are the products?
Reactants are H2 and O2; and the product is H2O
Identify which is the property of Ionic bonds. 1)They have low melting points 2)They have low boiling points 3)The form hard, brittle crystals with characteristics shape 4)They contain no charges
What is they form hard, britle crystals with characteristics shape
what is a nonpolar bond
What is a covalent bond in which electrons are equally shared
A chemical bond that is formed when two atoms share electrons is called
What is covalent bond
Nonmetals tend to ___________ electrons and become ___________ ions.
What is: gain electrons and become negative ions.
2 H2O ----> 2H2 + O2; what is the large # 2 infront of the chemical formulas called?
What is Coefficients
Ionic compounds are electrically ___________
What is neutral
How are covalent bonds (shared electrons) represented in a Lewis dot formula?
A straight line; example H-H
What is a double bond?
What is two pairs of electrons that are shaired between two atoms; represented by two = lines in a Lewis dot structure; for example O=O.
When an atom loses an electron it becomes a
What is positive ion
Hydroxide(OH-) and Cyanide(CN-) are examples of _______
What is polyatomic ions; two nonmetals that function like an single ion; teacher will give you a list.
What are the three properties of Ionic bonds?
What is 1)Ionic crystals 2)High Melting Points 3)Electrical Conductivity
What are three properties of molecular compounds
What is low melting points, low boiling point, and poor conductivity
A covalent bond in which electrons are shared unequally is called
What is Polar covalent bond;