Will give ! (only for correct answers) for each of the following reactions, identify all of these: a. oxidized species b. reduced species c. oxidizing agent d. reducing agent i) 2 fe (s) + 3 cl2 (g) --> 2 fecl3(s) ii) mg (s) +2 h2so4 (aq) --> mgso4 (aq) + so2 (g) + 2 h2o (l) iii) 2 mg (s) + o2 (g) --> 2 mgo (s)

Compare and contrast physical changes with chemical changes.

Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean

How many liters of ethylene glycol antifreeze (c2h6o2), with a density of 1.100 g/l, would you add to your car radiator containing 15.0 kg of water if you needed to protect your engine to - 21.5°c? for water, kf = 1.86°c m -1.