Atomic Model, Structure, and Theory
Stoichiometry
Chemical Bonding, Structurs, and Names
Perodic table and Trends
Chemical Reactions
100
What two things does an atomic number tell you
Number of protons and electrons
100
Mass is measured in what unit?
Grams
100
Covealent bonds occur when atoms what?
SHare electrons
100
What is an atomic number?
It is the number of protons found in the neucleus
100
What is the starting substance in a chemical reaction?
product
200
The neucleus of an atom consits of what?
Protons and Neutrons
200
Molar mass always has the ratio of what?
Grams over Mole
200
Compounds that are liquids and are easily vaporized at room temp. are formed by what kind of bond?
covalent bonds
200
What is a positive ion?
cation
200
Balance this chemical reaction: _SO2+ _O2-->_SO3
2SO2+ O2-->2SO3
300
What is unique about every element?
THe number of protons
300
What are solutions where water is the solvent?
Aqueas
300
What is the most correct name for the ionic compund formed by Fe+2 and Cl-1
Iron (II) Chloride
300
What is the chemical name for CS2
Carbon Disulfide
300
Lis the different chemical reactions
Single replacement, double replacement, combustion, decomposition, and synthesis
400
The term for a tiny piece of matter that cannot be divided is..
An atom
400
2Na+Cl2 -> 2NaCl If you have 3.2 moles of Na how many moles of Cl2 do you need?
1.6
400
What would be the formula for an ion that has 17 protons and 18 electrons
Cl-
400
What is the chemical name for KBr
Potassium Bromide
400
According to the law of conservation of mass, atoms are what?
Never created nor destroyed
500
J.J Thomson's experiments on the atom gave evidence that an atom contains what?
Negativly charged particles
500
A student dissolves 35g of calcium chloride (Ca+2Cl-1) in watr to make 550ml of solution. What is the molarity of the calcium chloride solution?
O.315 moles CaCl2
500
What type of bonds are formed in N2O4 and what is the name of this compound?
Covalent, dinitorgen tetraoxide
500
Electronegativity tends to increase as you what?
Go from Left to Right across the Periodic Table
500
Write the formula of the reactants and products, then balance the equation. -Iron forms in air to form a black solid (Fe3O4)
3Fe=2O2-->2NaCl
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