How many kJ are required to heat 45.0 g of H20 at 25.0 degrees celsius and then boil it all away? (specific heat of liquid water is 4.18 J/g degrees celsius)

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

How does a hydroelectric power plant converts energy into energy.

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5