CHEM 1311 - Final Exam Review
Questions & Answers (Grade A+)
T/F: chemical changes are accompanied by changes in the total
mass of the substances involved -
correct answer ✅False; Law of Conservation of Mass
T/F: chemical changes always produce substances different from
the starting materials -
correct answer ✅True
prefix "micro (µ)" refers to? -
correct answer ✅10^-6
1 liter is equivalent to -
correct answer ✅10^3 mL / 1000 mL
How to find p, n and e of an isotope? -
correct answer ✅protons = electrons = atomic #
neutrons = atomic # - amu OR isotop # - atomic #
FOR IONS = subt/add ONLY electrons based on charge! opposites
btw
Questions & Answers (Grade A+)
T/F: chemical changes are accompanied by changes in the total
mass of the substances involved -
correct answer ✅False; Law of Conservation of Mass
T/F: chemical changes always produce substances different from
the starting materials -
correct answer ✅True
prefix "micro (µ)" refers to? -
correct answer ✅10^-6
1 liter is equivalent to -
correct answer ✅10^3 mL / 1000 mL
How to find p, n and e of an isotope? -
correct answer ✅protons = electrons = atomic #
neutrons = atomic # - amu OR isotop # - atomic #
FOR IONS = subt/add ONLY electrons based on charge! opposites
btw
