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OPTIONAL: If you want the possibility of partial credit for wrong answers to the other question on this page, upload your work or give your rationale here. You are also welcome to upload an audio explanation. Please ensure that any attachment is upright and legible.  For your uploads: please label the file with your name, and some indication of which problem it is (not the problem number, but something about the problem. The problems are shuffled so not everyone has the same number).

Which branch of chemistry deals with mostly carbon-containing compounds?

Which has greater electronegativity? Oxygen, or Hydrogen?

UCBA has computers (loaner laptops and on-site computers) that students may use to take exams. UCBA also has reliable WiFi and quiet places where students can take exams.   Please select the answer that best applies to you.

What is the concentration (in M) of iodide ions when 0.200 moles of FeI3 is dissolved in 725 mL of water?

231 mL of water is added to 19 mL of 7.0 M AgNO3 What is the concentration, in M, of the resulting solution? Hint:  Vwater = V2 (final volume) – V1 (initial volume)

A system performs 111 kJ of work on its surroundings and gains 89 kJ of heat. What is the value of ΔE (in kJ) for the system?

46 mL of water is added to 204 mL of 7.0 M AgNO3 What is the concentration, in M, of the resulting solution? Hint:  Vwater = V2 (final volume) – V1 (initial volume)

Consider an unknown metal sample that weighs 10.0 g. If the unknown metal absorbs 309 J of energy to heat up from 10.0°C to 27.0°C, what is the most likely identity of the metal?  

What is the oxidation number for the chlorine atom in the compound, potassium chlorate, KClO3?