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CHEM 1465 UTA FINAL REVIEW EXAM QUESTIONS AND VERIFIED ANSWERS
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CHEM 1465 UTA FINAL REVIEW EXAM QUESTIONS AND VERIFIED ANSWERS...
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Chem 1465 UTA Final Review Exam 2023Rules for Significant Figures - ANSWER 1. Non-zero digits are always
significant.
2. Any zeros between two significant digits are significant.
3. A final zero or trailing zeros in the decimal portion ONLY are significant.
addition and subtraction sig figs - ANSWER least precise
Multiplication and Division sig figs - ANSWER least number of sig figs
Calculations Involving Both Multiplication/Division and Addition/Subtraction -
ANSWER Perform the calculation one step at a time, applying the appropriate
rule at each step
Sig Figs in Scientific Notation - ANSWER match amount of sig figs, in the
answer, with the least precise component
dimensional analysis - ANSWER 1.Write down what you know
2. Start with the given measured quantity
3.Apply conversion factors to cancel unwanted units
1inch - ANSWER 2.54cm
1kg - ANSWER 2.205lb
Giga - ANSWER 10^9
Mega - ANSWER 10^6
Kilo - ANSWER 10^3
deci - ANSWER 10^-1
milli - ANSWER 10^-3
micro - ANSWER 10^-6
nano - ANSWER 10^-9
peco - ANSWER 10^-12
,centi - ANSWER 10^-2
femto - ANSWER 10^-15
Density - ANSWER mass/volume
Fundamental SI Units - ANSWER kilogram (kg), metre (m), second (s), ampere
(amp), mole (mol), kelvin (K)
Kelvin - ANSWER C+273.15
Protons - ANSWER 1.672E-27kg, 1.602E-19, +1
Neutrons - ANSWER 1.67493E-27, no charge
Electrons - ANSWER 9.10939E-31, -1.602E-19,-1
modern view of atomic structure - ANSWER Top Number - Number of Protons
Bottom Number - Atomic Wieght
atomic number - ANSWER number of protons
mass number - ANSWER the sum of the number of neutrons and protons in an
atomic nucleus
Isotopes - ANSWER Atoms of the same element that have different numbers of
neutrons
+ sign on element symbol - ANSWER Less electron
- sign on element symbol - ANSWER Extra electron
percent abundance equation - ANSWER Average Mass = (%)•(Mass of Isotope
A) + (%)•(Mass of Isotope B) +...
main group elements - ANSWER 1,2,13-18
molecular compound - ANSWER Sharing of electrons between two non-metals
Ionic compound - ANSWER electrostatic attraction between metals and
non-metals
Charge of Group 1 - ANSWER +1
Charge of Group 2 - ANSWER +2
Charge of Aluminum - ANSWER +3
, Charge of Zinc - ANSWER 2+
Charge of Silver (Ag) - ANSWER +1
Charge of group 17 - ANSWER -1
Charge of group 16 - ANSWER -2
Charge of Group 15 - ANSWER -3
Hydroxide - ANSWER OH-
Cyanide - ANSWER CN-
Peroxide - ANSWER O2 2-
Azide - ANSWER N3-
Acetate - ANSWER C2H3O2-
Carbonate - ANSWER CO3 2-
Chlorate - ANSWER ClO3-
Nitrate - ANSWER NO3-
Permanganate - ANSWER MnO4-
Phosphate - ANSWER PO4 3-
Sulfate - ANSWER SO4 2-
Nitrite - ANSWER NO2-
Sulfite - ANSWER SO3 2-
Hydroxide - ANSWER OH-
Thiosulfate - ANSWER S2O3 2-
Hydrogen Phosphate - ANSWER HPO4 2-
Dihydrogen Phosphate - ANSWER H2PO4-
Bisulfate - ANSWER HSO4-
Names and Formulas of Ionic compunds - ANSWER 1. name the cation and
then the anion. Do not use number prefixes
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