Which of these is a reason gold is more expensive than metals like aluminum? a) gold is rarely found in earth’s crust. b) gold is the most common metal on earth. c) gold is one of the lightest metals known to man. d) gold can easily be bent into attractive shapes and designs.

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

The diagram below shows a cell placed in a solution.a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it.it will expand as water moves into it. it will shrink as water moves into it.

Geothermal energy for industrial use is available almost anywhere. a.true b.false