By reference to their structure, explain how the particles in a piece of metal are held together and how the shape of the metal can be changed without it breaking.

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.