WorksheetsChemistry Final Exam
Total questions: 21
Worksheet time: 13mins
What is the constant in the combined gas law?
pressure
volume
number of moles
temperature
Natural gas contains ...
Methane
Lignite
Ethane
Aromatic
Alkanes
How quickly an element undergoes nuclear decay is a measure of ...
transmutation
half-life
radioactivity
nuclear fission
Which are involved in chemical reactions
coefficient
product
subscript
reactant
What are the 3 concepts to provide the basis for relating masses in grams to number of atoms?
(a)
What is the molar mass of Aluminum?
25.7 g/mol
22.4 g/mol
26.9 g.mol
28.6 g/mol
What type of chemical reaction is taking 1 element and splitting it into 2?
synthesis
decomposition
single replacement
combustion
double replacement
What type of equation begins all stoichiometric calculations?
balanced chemical
chemical
single replacement
double replacement
When making brownies you have plenty of flour, but run out of eggs. What is flour? what are the eggs?
excess, limiting
percent yield, excess
product, reactant
The energy stored in the chemical bonds of a substance are called...
Chemical Potential Energy
Law of Conservation of Energy
Kinetic Energy
Heat of Solidification
What is the ph of water?
3
10
7
5
What is the ph level of acids that is considered most dangerous?
0-2
4-6
8-10
What is the oxidizing and reducing agents in the equation 2Na + C --> Na2 + C
oxidizing - C
reducing - Na
reducing- C
oxidizing-Na
oxidizing- C
reducing- NaC
How many times stronger is an acid with a pH of 2 compared with an acid that has a pH of 4?
50 times
36 times
100 times
125 times
What is the formula for Alcohols?
RCOOH
C=O
R-OH
RCOR
What Hydrocarbon contians a carbon ring?
Aromatic
Alkene
Cyclic
Which unsaturated hydrocarbon has a double bond?
Alkenes
Alkynes
Alkines
What produces water when formed?
Condensation Polymer
Polypropylene
Polymer
Polyvinyl chloride
Polymer
Teflon Polymer
What is additional polymers widely used as?
Rubber, Plastics, Vinyl
Wood, Metal, String
Steel, Fabric, Foam
What does a neutralization reaction form?
Salt, Water
Gasoline, Sugar
Milk, Bread
What is the molar mass of Calcium Chloride : CaCl2
18.0 g/mol
111.1 g/mol
159.7 g/mol
65.3 g/mol
