An igneous rock has a coarse texture and is dark in color. How else can this rock be accurately described? small crystals
cooled quickly
produced from magma
formed at Earth’s surface Which rock is an example of a chemical sedimentary rock? coal iron ore shale sandstone

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.