4. Redraw the following compounds from most reduced to most oxidized. If compounds have identical oxidation states, draw them under each other. OH میر محمد ملک OH OH .OH OH HS سلام پر من OH most reduced most oxidized

Which is the oxidizing agent in the combustion of methanol (CH3OH)? CO2 O2 O CH3OH

determine the products

8:32 ::! ? A moodle.nct.edu.om Not yet answered Marked out of 1.00 P Flag question General formula of alkenes is O CnH2n O Cn-2Hn O CnH2n+2 O CnH2n-2 Question 8 Not yet answered Marked out of 1.00 P Flag question A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. Select one: O True O False

O O CH3 C C-O NAD+ NADH CH3—C−O + CO2 The reactant molecule is re-drawn in the drawing area below. Highlight in red any groups in this molecule in which carbon atoms are oxidized by the reaction. Highlight in blue any groups in which carbon atoms are reduced. If no carbon atoms are oxidized or reduced, check the box under the drawing area. O O CH₂ -C No carbons are oxidized or reduced. ·0 x È ? 00 Är

what's the oxidation number of each element? which of these is oxidation agent/ reducing agent?

In the redox reduction that the chemical compound ethanol (C2H5OH) participates in while a Breathalyzer test is being used, is the chemical reaction that occurs, endothermic or exothermic?

To a test tube containing 5.0 ml of 1.00 M NaOH at 27°C in a calorimeter, 5.0 ml of 2.00 M HNO3 at the same temperature was added, the heat generated by the reaction was monitored. Which of the following is TRUE? a.Reaction is exothermic; solution will turn pink upon addition of phenolphthalein. b.Heat is absorbed by the system; no color change will be observed upon addition of phenolphthalein. c.Heat is released by the system; no color change will be observed upon addition of phenolphthalein. d.Reaction is endothermic; solution will turn pink upon addition of phenolphthalein.

Chemistry (Question - 5)

+ CI 1) FeCl3 2) H₂O ?