Cards in this guide (15)
What does the average atomic mass represent
The average atomic mass represents the weighted average of the
masses of the isotopes of the element.
Calculate the number of atoms of O contained in 16.0 pounds of O
16.0 lbs = 7,257 g of O2
Oxygen exists in the gas form as 02
7,257g O2 * 1 mol O2/ 32 g * 2 mol O / 1 mol O2 * 6.022x10^23
atoms/mol
= 2.73E26 atoms of O
How do scientists design a system
They isolate their experiment from unwanted influences.
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.
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 happens to the anode in an electrochemical cell
How does the activity series of metals reflect the stability of metals
The metals highest on the list are the least stable.
Which is the least likely to be reduced
What characteristics indicates that an atom is unstable
by creating very strong bonds
Which statements accurately describe the culture or geography of Latin America
All life on earth is ultimately dependent on what
What is the voltage of galvanic cell made with magnesium (Mg) and gold (Au)
If an element has three isotopes with known masses what information is needed to find the average atomic mass of the element
The abundance percentage of each isotope
Which of the following statements describes electromagnetism
Magnetism can create electricity, and electricity can create
magnetism.
