PLS HELP ME W THIS Directions : Consider the following balanced reaction and answer the corresponding questions : C 3 H 8 + 5O 2 ... > 3 O 2 + 4 H 2 O 23 , If you have 25 grams of propane calculations ) (C 3 H 8 ) how much H 2 O can be produced in ? ( Show all a . moles ? b . grams of H2O ? c . molecules of H20 ? 24. If you conduct this same reaction in the lab with the same amount ( 25 grams propane ) and obtain 31.6 grams of what is the percent yield of ? ( Show calculation ) H 2 O; H 2 O

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.