quiz 3 Flashcards
What statement is accurate about mercury in water
It is an inorganic pollutant
What is NOT true about alkanes and alkenes
Nitrogen is contained in alkanes
Which compound is the most toxic
Trichloromethane
Which compound is propane
C3H8
Which compound is 1,4-dichlorobenzene
C6H4Cl2
Name the elements of which benzene is composed of
Carbon and Hydrogen
What is the definition of Molarity (M)
Molarity is the number of moles of solute dissolved in one liter of solution
What is the unit of Molecular Weight (MW) of a chemical compound
g/mol
Balance the following chemical reaction: CH4 + O2 => CO2 + H2O
CH4 + 2O2 => CO2 + 2H2O
What is Theoretical Oxygen Demand
Oxygen required to completely oxidize a chemical substance to carbon dioxide and water
What is NOT true about reversible and irreversible reactions
Equilibrium reactions are irreversible reactions
Describe the concept of chemical equilibria in a closed system, when both reactions proceed at the same rate
The rate of formation of each constituent equals the rate of depletion and there is no net change
What is the definition of pH
pH = -log[H+]
Which statement is correct for an acidic solution
[H+]>[OH-]
The following is true for equilibrium reaction constants
They stay constant when molar concentrations or reactants and products change
