ACS Chemistry Bundle

Accuracy? - Answer Closeness of measurements to the TRUE VALUE of what is being measured Precision? - Answer Closeness of a SET of measurements How do you calculate Percent Error? - Answer I experimental-accepted I ____________________ x 100 accepted value Are zeros infront of non...

Rutherford's Gold Foil Experiment - Answer proposed that atoms consist of a tiny, massive, positive nucleus surrounded by electrons nucleus - Answer contains all the positive charge and nearly all the mass of the atom James Chadwick - Answer discovered the neutron cathode rays - Answ...

Layout of an element (mass # & atomic #) - Answer atomic number = - Answer # of protons mass number = - Answer # of protons + neutrons the number of protons in a neutral atom will equal the - Answer # of electrons how to find the correct number of neutrons - Answer mass number...

What is the order of the electromagnetic spectrum from high to low energy? - Answer Gamma rays, x-rays, UV, visible, IR, microwaves, radio What transitions occur in the microwave spectrum? - Answer Rotational What transitions occur in the IR spectrum? - Answer Vibrational with accompanyi...

the physical material of the universe. It is anything that has mass and occupies space. - Answer Matter is made up of relatively few elements. - Answer Matter The smallest building block of matter. Smallest particle that retains the chemical property of the element (O, He, S). - Answer A...

What is the difference between a homogeneous and heterogeneous mixture? Can they be separated? - Answer A homogeneous mixture is a uniform composition throughout whereas a heterogeneous mixture has other substances. They can be separated but through physical processes. What is the diffe...