STRAIGHTERLINE CHEMISTRY FINAL EXAM SCRIPT 2026 TEST PAPER QUESTIONS AND SOLUTIONS GRADED A+

STRAIGHTERLINE CHEMISTRY FINAL EXAM
SCRIPT 2026 TEST PAPER QUESTIONS AND
SOLUTIONS GRADED A+


◉ 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-zero digis significant? Answer: 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? Answer: Yep!
ex: 9.100 is 4 sig figs


◉ Addition/Subtraction in regards to sig figs? Answer: Round
numbers to the least number of decimal places

, ◉ Multiplaction/Division in regards to sig figs? Answer: Round
answers to the least amount of sig figs


◉ # of e- equal Answer: the # of p+


◉ Atomic Mass? Answer: Number of protons in the nucleus (number
on the left bottom corner of the chemical symbol)


◉ Atomic Mass Number? Answer: Number of protons and neutrons
(number on the left upper corner of the chemical symbol)


◉ Isotope? Answer: Atoms of the same element, but with different
masses (different number of neutrons)


◉ STUDY ELECTRON CONFIGURATIONS Answer: STUDY ELECTRON
CONFIGURATIONS


◉ Do columns or rows in the Periodic Table have similar patterns?
Answer: Columns (the "groups") have repeating patterns?


◉ Which area of the Periodic Table has greater metallicness?
Answer: Left and down has greater metallicness