Explain how the heat measured in example 5.5 diffees from enthalpy change for the exothermic reactions described by the following equation:
hcl + naoh ? nacl + h2o
reference example 5.5
heat produced by an exothermic reaction
when 50.0ml of 0.10 m hcl and 50.0 ml of 0.10 m naoh, both at 22.0c are added to a cofee cup calorimeter, the temperature of the mixture reaches a maximum of 28.9 c. what is the approximate amount of heat produced by this reaction
hcl + naoh ? nacl + h2o

This flow chart shows the amount of energy that is emitted by each type of light. ultraviolet > blue light > yellow light > red light (maximum energy) (minimum energy) in an experiment, shining which type of light on a strip of metal would be least likely to produce the photoelectric effect? ultraviolet light dim blue light bright red light bright yellow light

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =

Suppose a pair of chemical compounds a and b can react in two different ways: a + b -> c reaction 1 gives product c. a + b -> d reaction 2 gives product d. the following facts are known about the two reactions: . reaction 1 is endothermic and reaction 2 is exothermic. if a reaction vessel is charged (filled) with a and b , then at first d is produced faster than c. use these facts to sketch a qualitative reaction energy diagram for both reactions. note: because these sketches are only qualitative, the energies don? t have to be exact. they only have to have the right relationship to each other. for example, if one energy is less than another, that fact should be clear in your sketch.