How is a compound different than a mixture? O A compound can be separated by physical means.
A mixture is made of only one type of atom.
O A mixture can be separated by physical means.
O A compound is made of only one type of atom.

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by

The amount of potential energy possessed by an elevated object is equal to

"if the pressure acting on an ideal gas at constant temperature is tripled, its volume isa) reduced to one-third. b) increased by a factor of three. c) increased by a factor of two. d) reduced to one-half"