Chemistry Final ACS Exam 2022 with complete solution
Accuracy? >>>Closeness of measurements to the TRUE VALUE of what is being measured
Precision? >>>Closeness of a SET of measurements
How do you calculate Perce
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Chemistry Final ACS Exam 2022 with complete solution
Accuracy? >>>Closeness of measurements to the TRUE VALUE of what is being measured
Precision? >>>Closeness of a SET of measurements
How do you calculate Percent Error? >>>I experimental-accepted I
____________________ x 100
accepted value
Are zeros infront of non-zero digis significant? >>>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? >>>Yep!
ex: 9.100 is 4 sig figs
Addition/Subtraction in regards to sig figs? >>>Round numbers to the least number of decimal places
Multiplaction/Division in regards to sig figs? >>>Round answers to the least amount of sig figs
# of e- equal >>>the # of p+
Atomic Mass? >>>Number of protons in the nucleus (number on the left bottom corner of the chemical symbol)
Atomic Mass Number? >>>Number of protons and neutrons (number on the left upper corner of the chemical symbol)
Isotope? >>>Atoms of the same element, but with different masses (different number of neutrons)
STUDY ELECTRON CONFIGURATIONS >>>STUDY ELECTRON CONFIGURATIONS
Do columns or rows in the Periodic Table have similar patterns? >>>Columns (the "groups") have repeating patterns?
Which area of the Periodic Table has greater metallicness? >>>Left and down has greater metallicness
Which area of the PT has greater atomic size? >>>Left and down has a greater atomic size
Which area of the PT has greater ionization energy? >>>Right side and up has greater ionization energy
Which area of the PT has greater electronegativity? >>>Right side and up has greater electronegativiy, except the Noble Gases of 0 electronegativy
Ionic Bonding? >>>Metal and a nonmetal. Give/take electrons
Covalent bonding? >>>Nonmetal and a nonmetal. Share electrons.
VSEPR Theory? >>>Valence Shell Electron Pair Repulsion
aka Valence e- pairs stay as far apart as possible
How do you determine polarity? >>>Use the chart that has electronegativity values, then subtract the elements in the compound from each other.
Is water polar? >>>Yes!
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