Study guides, Class notes & Summaries

Notes from an academic (freshman year) level psychology class.

A summary of IB Biology Unit 3 Genetics (specifically for Standard Level). Organised according to IB syllabus statements.

Considering functions defined by its graphs and finding some limits.

Cornell style AP Psych class notes (written in 2020-21) from Meyers' AP Psychology textbook. Unit 1, module 1 focuses on defining psychology, its roots, important historical figures, and the early schools of thought. Includes essential questions and their answers.

A quiz from 8 September 2017 with answers where I find the solutions to various limit problems: at indicated points on graphs, through algebraic methods, and numerically.

Using the graphs of functions to answer limit questions, and then evaluating limits algebraically.

The first two questions are calculating limits algebraically. The next three questions are a limit of piece-wise functions at critical points and two limits for trigonometric functions.

1 Which equation produces the enthalpy change of formation of copper(I) iodide? A Cu+(g) + I –(g)  CuI (s) B Cu(g) + I (g)  CuI (s) C Cu(s) + I 2(s)  CuI2(s) D Cu(s) + ½I 2(s)  CuI(s) Your answer [1] 2 14.4 g of an element X react with oxygen to form 24.0 g of a compound XO2. Which element is X? A Fluorine B Magnesium C Titanium D Molybdenum Your answer [1] 3 Bromine is a toxic gas. The maximum safe concentration of bromine in air is 0.0040 mg dm–3. How many brom...

1 D 1 2 C 1 3 A 1 4 B 1 5 B 1 6 C 1 7 C 1 8 D 1 9 D 1 10 C 1 11 B 1 12 A 1 13 B 1 14 A 1 15 D 1 Total 15H432/01 Mark Scheme Practice 1 8 SECTION B Question Answer Marks Guidance 16 (a) 1s 2s 2p ↑↓ ↑↓ ↑↓ ↑ ↑  1 ALLOW unpaired electrons in last two boxes pointing down. (b) (i) Na6+(g) → Na7+(g) + e–  State symbols must be included 1 ALLOW Na6+(g) – e–→ Na7+(g) 
 ALLOW e for electron (i.e. charge omitted) IGNORE state with e– (ii) ra...