CHM_113FA21_Lecture Outline - 08-30-2021.docx - CHM 113:...

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CHM 113:General Chemistry IDr. Alan Szeto, Fall 2021LECTURE OUTLINEDATE:AUGUST 30, 2021Name:1.Indicate whether each of the following statements is true (T) or false (F):A mixture must contain two or more (pure) substances.
A substance readily reacts with water; therefore, this substancemust be a compound.
2.Give the proper terms (names) describing the following phase transitions.Gas → SolidAnswer:_______________Liquid → GasAnswer:_______________Gas → LiquidAnswer:_______________3.Identify which of the following changes is physical (a phase transition).One of thesechanges, however, is a chemical change.Identify it as well.Answer:_______________
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4.Explain clearly the difference between vibration, rotation, and translation as applied todescribe the motions of particles in a solid, a liquid, or a gas.Answer:5.Perform the following temperature conversions.17°C → KelvinAnswer:_______________–52°C → KelvinAnswer:_______________248 K → °CAnswer:_______________6.Explain clearly the reason, as discussed during lectures, that adding heat to a liquid (orheating a liquid) can turn it into a gas.Answer:7.Identify the following specific elements by their names (or symbols).The element in Group IIIA and period 3Answer:__________The only non-metal that is a liquid at room-temperatureAnswer:__________The most reactive halogenAnswer:__________The largest (i.e., largest-sized) alkaline earth metalthat is not known to be radioactiveAnswer:__________The only metal that is a liquid at room-temperatureAnswer:__________2
The most non-metallic element in period 5Answer:__________8.Based on your knowledge of valence electrons, identify the following elements by theirnames (or symbols).The only non-metal with four (4) valence electronsAnswer:__________The noble gas with the fewest number of electron shellsAnswer:__________The only element in period 3 with a complete octetAnswer:__________The smallest-sized metal with only one valence electronAnswer:__________9.Describe four (4) allotropes of the element, carbon (C), and two allotropes of oxygen (O).

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Term
Fall
Professor
N/A
Tags
Chemistry, Atom, John Dalton

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