Determine the heat of reaction for the decomposition of one mole of benzene to acetylene, C6H6(l) ---> 3C2H2(g)

given the following thermochemical equations:

2C 6 H 6 ( l ) + 15O 2 ( g ) ---> 12CO 2 ( g ) + 6H 2 O( g )

Δ H = -6271 kJ

2C 2 H 2 ( g ) + 5O 2 ( g ) ---> 4CO 2 ( g ) + 2H 2 O( g )

Δ H = -2511 kJ

631 kJ

1262 kJ

3760 kJ

6902 kJ

8782 kJ

50 pts plz what is the physical state of matter of baking soda.

Need what is special about water as a compound? how does water regulate climate? what drives water evaporation?   why is the water vapor fresh water when it rises from the ocean? why might freshwater in the form of snow take longer to enter the water cycle again than liquid precipitation?   what is an aquifer? what role do people play in the water cycle? plz just answer as many as you can ! thx if you !

Iron (fe) reacts with copper sulfate (cuso4) to form iron (ii) sulfate. in this reaction, cu2+ gains electrons to form cu. which statement is true about this reaction? fe(s) + cuso4(aq) → feso4(aq) + cu(s)