When fuel is burned in a cylinder equipped with a piston, the volume expands from 0.245 L to 1.280 L against an external pressure of 1.02 atm . In addition, 843 J is emitted as heat. What is ΔE for the burning of the fuel?

How much heat is released upon converting one mole of steam (18.0 g) from 100.0 ∘c to water at 25.0 ∘c? show work and constants, trying to figure out how it works. only given the heat capacity for steam and water so try to only use that

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent

From the options provided for each element below, choose the properties that it may have based on its location in the periodic table fluorine (f): highly reactive nonmetal shiny a conductor