At high temperatures, sulfur combines with iron to form the brown-black iron (ii) sulfide: fe (s) + s (i) > fes (s) in one experiment, 7.62 g of fe are allowed to react with 8.67 g of s. a. what is the limiting reagent, and what is the reactant in excess? b. calculate the mass of fes formed.
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Chemistry, 23.06.2019 08:00
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.
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Chemistry, 23.06.2019 09:00
20 grams of water. she poured out 15 grams. which of the following physical properties of the water changes? a .boiling point b. density c .electrical conductivity d .volume
Answers: 2
At high temperatures, sulfur combines with iron to form the brown-black iron (ii) sulfide: fe (s) +...
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