Which of the following will result in a chemical change?
a. drying wood in a shed
b. melting ice to obtain water
c. burning coal in a furnace
d. evaporating alcohol into vapor

Subduction zones occur on earth where dense oceanic crust dives under more buoyant continental crust. these boundaries are characterized by a deep ocean trench next to a high continental mountain range, large numbers of earthquakes and volcanoes. all of this is further evidence for the a) big bang theory b) origin of the species eliminate c theory of plate tectonics d theory of natural selection 4 sedimentary rocks found high in the himalayen mountain

Which sentence best describes the formation of igneous rock? a- lava on the surface dries up and makes arock b_melted rocks cools and forms crystals c_rocks under tremendous heat and pressure d_magma is melted rock underground

Asolution contains 180 g of glucose (c6h12o6) and 162 g of water. what is the mole fraction of glucose?