ACS Chemistry Final Exam Practice Questions and Answers (Graded A+ with Comprehensive Coverage)

ACS CHEMISTRY FINAL EXAM QUESTIONS AND
ANSWERS GRADED A+ 100% GUARANTEED SUCCESS.




Accuracy? ANS >>> Closeness of measurements to the TRUE
VALUE of what is being measured


Precision? ANS >>> Closeness of a SET of measurements


How do you calculate Percent Error? ANS >>> I experimental-
accepted I
____________________ x 100
accepted value


Are zeros Infront of non-zero digs significant? ANS >>> Nope!
ex: 0.0071 is only 2 sig figs

, Are zeros at the end of a number and to the right of the decimal
significant? ANS >>> Yep!
ex: 9.100 is 4 sig figs


Addition/Subtraction in regards to sig figs? ANS >>> Round
numbers to the least number of decimal places


Multiplication/Division in regards to sig figs? ANS >>> Round
answers to the least amount of sig figs


# of e- equal ANS >>> the # of p+


Atomic Mass? ANS >>> Number of protons in the nucleus (number
on the left bottom corner of the chemical symbol)


Atomic Mass Number? ANS >>> Number of protons and neutrons
(number on the left upper corner of the chemical symbol)


Isotope? ANS >>> Atoms of the same element, but with different
masses (different number of neutrons)