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OCR A+Level Chemistry- Module 2 Solutions _1

OCR A+Level Chemistry- Module 2 Solutions _1

OCR A+Level Chemistry- Module 2 Solutions _1

CHEM 120 WEEK 8 FINAL EXAM, STUDY GUIDE AND REVIEW COMPILATION/ACTUAL EXAMS WITH CORRECT DETAILED ANSWERS AND WORKINGS/A+ GRADE/LATEST UPDATE 2024

The Octet Rule - correct answer Main group elements (groups 1, 2, and 13-17) tend to form bonds so that they have an "octet" of electrons (8 electrons) Noble gases - correct answer • Noble gases usually exist as single atoms and do not tend to form compounds; this is because they have completely filled orbitals. • Noble gases have filled s and p orbitals in the outermost shell Valence electrons - correct ans...

Al - correct answer Aluminum Ar - correct answer Argon As - correct answer Arsenic Ba - correct answer Barium Bi - correct answer Bismuth B - correct answer Boron Br - correct answer Bromine Cd - correct answer ...

Ammonium Ion - correct answer NH4(+) Nitrate Ion - correct answer NO3(-) Nitrite Ion - correct answer NO2(-) Hydrogen sulfate ion - correct answer HSO4(-) Sulfate ion - correct answer SO4(2-) Phosphate ion - correct answer PO4(3-) Hydrogen carbonate - co...

Matter - correct answer Anything that occupies space and has mass Energy - correct answer The capacity or ability to do work Physical properties - correct answer Properties that can be observed or measured without chemically changing the substance. - Size (mass, length, etc.) - Physical state -The temperature at which a substance changes state is also a physical property ...

What is the common name for the group containing helium, argon, and krypton? - correct answer Noble gases The molar mass of dicarbon pentafluoride is - correct answer 119.02 g/mol The mass percent of carbon in dicarbon pentafluoride is - correct answer 20.2% All of the following elements exists as diatomic molecules, except: - correct answer ...

The change in enthalpy (delta-H) can be calculated as: Δ H = n C p Δ T This is correct whether the reaction is conducted at constant volume or constant pressure or neither. - correct answer true Antoine Lavoisier discovered which element? - correct answer O Which of the following hypotheses is NOT part of John Dalton's "Atomic Theory"? - correct answer Mass is neither cre...