How many chemical reactions are possible regarding the formation of carbonic acid and the dissolving of calcite? a. 3. b. 10. c. 23.

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

The characteristic 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 and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

How much carbon is stored in the atmosphere as co2