OpenStax Chapter 4 Key Terms

Question 1

oxidation-reduction reactions

Answer 1

transfer of electrons

Question 2

oxidation

Answer 2

loss of electrons
increase in oxidation state

Question 3

reduction

Answer 3

gain in electrons
decrease in oxidation state

Question 4

oxidizing agent

Answer 4

e- acceptor
oxidizes other molecules by accepting electrons

Question 5

reducing agent

Answer 5

e- donor
reduces other substances by donating electrons

Question 6

stoichiometry

Answer 6

the amount of substances in a reaction
relate the stoichiometric coefficients of mass, moles, molecules

Question 7

limiting reagent

Answer 7

reactant that is used up completely in a chemical reaction
determines maximum amount of product that can be made

Question 8

excess reactant

Answer 8

leftover reactant after reaction is carried through completion

Question 9

theoretical yield

Answer 9

maximum amount of product that can be obtained

Question 10

quantitative analysis

Answer 10

determines the amount or concentration of substance in a sample

Question 11

titration analysis

Answer 11

type of quantitative analysis
titrate a solution of known concentration to determine an unknown concentration

Question 12

equivalence point

Answer 12

moles of the titrant = moles of the analyte

Question 13

indicators

Answer 13

substance that reacts to a change in acidity
helps to determine equivalence point

Question 14

end point

Answer 14

volume of titrant actually added

Question 15

gravimetric analysis

Answer 15

determines the mass or concentration of a substance by measuring a change in mass

Question 16

combustion analysis

Answer 16

determines the chemical formula of a hydrocarbon compound