Which of the following shows examples of things that convert electrical energy to thermal energy?
a
fan and wind turbine
b
toaster and room heater
c
airplane and human body
d
natural gas stove and blender

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.

For the reaction i2(g)+br2(g)←−→2ibr(g), kc=280 at 150 ∘c. suppose that 0.450 mol ibr in a 2.00-l flask is allowed to reach equilibrium at 150 ∘c. what is the equilibrium concentration of 2ibr, i2, br2

What mass of ca(oh)2 is needed to make 1250ml of a .75m solution?