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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.

Hess’s Law – Level 2 You are performing a reaction in a coffee cup calorimeter. You add a 1.00 g piece of magnesium metal (Mg) to 100.0 mL of 1.00 M hydrochloric acid (HCl). The reaction that occurs is:Mg(s) + 2HCl(aq) → MgCl₂(aq) + H₂(g)During the reaction, the temperature of the solution increases from 25.0°C to 32.5°C. Assume the specific heat capacity of the solution is the same as water, 4.18 J/g°C, and the density of the solution is 1.00 g/mL.Calculate the enthalpy change of the reaction (ΔH) using Hess’s Law.

Dye Absorbance and Transition Energy – Level 2 Four different dyes each absorb light at a different maximum wavelength (λmax):   Dye λₘₐₓ (nm) A 350 nm B 425 nm C 510 nm D 615 nm Which of these dyes absorbs photons with the the highest energy?

VESPR – Level 2 – Isomers How many isomers are possible for the following molecular formula given the following constraint: Molecular Formula: C3H8O You may only use single bonds. Only use constitutional isomers, do not consider chirality. No atoms may have a charge.