Vocabulary
Vocabulary
Experiments
Formulas
Random
100
A number written to the right of the chemical symbol and slightly bellow it.
Subscript
100
A group of atoms that are held together by covalent bonds so that they move as a group.
Molecule
100
What type of crystal structure do ionic compounds have?
Regular
100
What is the ratio of sodium atoms to chlorine atoms in halite (NaCl)?
1:1
100
Are most covalent bonds polar covalent?
yes
200
Uses chemical symbols to represent the atoms of the elements and their ratios.
Chemical Formula
200
A pair of shared electrons between two atoms.
Covalent Bond
200
Which of the three substances conducted electricity as a solid in our last lab?
Iron Filings
200
How many elements are present in the formula: ( Cl2NAl8 )
3 - Chlorine, Nitrogen, and Aluminum
200
What is the name of the compound KBr? Potassium (K) Bromine (Br)
Potassium Bromide
300
The force of attraction between positive and negative ions.
Ionic bond
300
A covalent bond in which the electrons are shared unequally.
Polar Covalent Bond
300
Which type of bond conducts electricity when dissolved in a solution?
Ionic
300
What does the 4 in the chemical formula CH4 mean?
There are 4 atoms of hydrogen.
300
Name 3 forms of carbon.
Diamond, graphite, and fullerene
400
The bond that allows metal atoms to share their electrons with one another.
Metallic Bond
400
Since there is only one atom of carbon in carbon dioxide, you don't need to use one of these for carbon.
Subscript
400
Typically, what type of bond has a low melting point?
Covalent
400
CH4 is the chemical formula for what molecule?
Methane
400
Name the elements in the compound K2SO4.
Potassium, Sulfur, Oxygen
500
Most contain the atoms of two or more types of elements; the number of atoms can range from two to many thousands.
Molecules
500
Water molecules are an example of this bond because oxygen attracts electrons far more strongly than hydrogen does.
Polar Covalent Bonds
500
How can carbon have different forms?
because of different bonds
500
What is the ratio of atoms in feldspar ( KAlSi3O8 )
1:1:3:8
500
In carbon dioxide (CO2) four electrons are shared. What is this an example of?
Double bond
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