Cards in this guide (20)
What does the average atomic mass represent
The average atomic mass represents the weighted average of the
masses of the isotopes of the element.
How many mg is one oz of Au
Gold is normally measured in Troy weight, approx 31.2 gms or
31200 mg per ounce
How is stoichiometry used to calculate the amount of product produced
Stoichiometry relates moles of reactant to moles of product, so
if you have the amount of reactant in the equation, you can
calculate the amount of product produced.
How are models affected by new evidence
Models are changed if they don't fit new data.
Why do scientists define systems
It minimizes sources of bias in the data.
What did organizing information on the periodic table reveal
Periodic patterns and trends
What is oxidized in a galvanic cell
What prevents charge buildup in a galvanic cell
What is the cathode of a galvanic cell made with magnesium and gold
What is true of both galvanic and electrolytic cells
reduction happens at the cathode
Oxidation happens at the anode
What happens to the anode in an electrochemical cell
What happens at the cathode in an electrolytic cell
Reduction occurs at the cathode in an electrolytic cell.
What does a negative cell voltage mean
The reaction is nonspontaneous.
How are the oxygen atoms balanced for redox equations in basic solutions
H2O and OH- are added to balance the oxygen atoms.
What branch of chemistry studies the flow of electrons
Which of the following best describes a galvanic cell
A battery containing a spontaneous redox reaction
How does the activity series of metals reflect the stability of metals
The metals highest on the list are the least stable.
What is the voltage of galvanic cell made with magnesium (Mg) and gold (Au)
In the reaction MgCI2 plus 2KOH MgOH2 plus 2KCI how many moles of MgOH2 are produced for every mole of MgCl2
What is the molarity of 2 moles of a compound dissolved in 4 l in water
