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The predominant intermolecular force present in sodium cation in water is:

Why does water have a higher boiling point than methane?

Dipole-dipole interactions occur between:

The coefficients, when the following equation is balanced are:

Download the following test paper and data-booklet.   A1 Kinematics summative   Data Booklet .pdf   At the end of the test:  Please upload your work as a single PDF file.   To retrieve your work via Gmail with Honor Lock enabled, use the link below: https://mail.google.com/mail/u/0/#inboxLinks to an external site. If you are using Airdrop, you can ignore this instruction. 

Colligative Properties – Level 2 Which of the following solutions would have the lowest melting point?Assume full dissociation for all species and each solution is aqueous.

Hess’s Law – System vs. Surroundings  – Level 1 When a student dissolves a salt in water inside a coffee-cup calorimeter, the temperature of the solution drops noticeably because a dissolution reaction occurs. Which statement best describes what is happening in terms of the system and surroundings?

Terminology – Spectroscopy – Level 1 Examine the following figure and determine the correct terminology that describes the spectroscopic shift for “II” (the one on the right).

Level 1 – Solubility Equations and Recrystallization A student determined the following data experimentally:1 mg of compound A dissolves in 100 mL of solvent at 0oC.10 mg of compound A dissolves in 1 mL of a solvent at 100oC. Using this data, the student intends to perform a recrystallization on a larger scale. Calculate the minimum volume of solvent required for dissolving 50 g of compound A.

Absorbance vs Transmittance – Level 1 Convert Abs of 0.24 to % Transmittance.