Cards in this guide (22)
How is stoichiometry used
Stoichiometry is used to find the molar ratios between the
reactants of a chemical reaction.
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.
What is one way forces act on atoms
Forces cause bonds to form.
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 best describes how forces affect matter
Forces hold matter together.
How do atoms show both unity and diversity
There are relatively few atoms, but they make many
molecules.
What happens at the cathode in an electrolytic cell
Reduction occurs at the cathode in an electrolytic cell.
What gets heavier in an electrochemical cell
How do chemists organize information about elements
By grouping the elements on the periodic table
When a magnet is moved alongside a wire what happens
the electrons in the wire begin to flow
Which of these statements does not describe electricity
electricity cools down devices as it travels through them
Electricity acts in ways similar to ice, which is a solid.
Which of the following best describes a galvanic cell
A battery containing a spontaneous redox reaction
What is the average atomic mass of an element with isotopes a b and c
(mass of A) x (%of A) + (mass of B) x (% of B) + (mass of C) x
(% of C)
Which metal gets coated during electroplating
The cathode gets coated during electroplating.
What characteristics indicates that an atom is unstable
by creating very strong bonds
All life on earth is ultimately dependent on what
Similar scientific themes are seen in what areas of science
What is a trend seen in the periodic table
Which of the following metals is the least stable Silver Potassium Iron or Aluminum
Which of the following statements describes electromagnetism
Magnetism can create electricity, and electricity can create
magnetism.
In the reaction mgcl2 plus 2koh mgoh2 mgoh2 plus 2kcl if 3 moles mgcl2 are added to 4 moles koh what determined how much mgoh2 is made