You are dating rocks by their proportion of parent isotope potassium-40 (half-life time 1.25 billion years) and daughter isotope argon-40. If the rock initially was made of only potassium-40, find the age for each of the following (explain your reasoning): a) A rock containing equal amount of potassium-40 and Argon-40. b) A rock that contain three times as much argon-40 as potassium-40

Carbon based or cells?

The answer to your question would be  h+ + cn– + li+ + oh– mc001-4.jpg li+ + cn– + h2o. the total ionic equation for the following reaction is  h+ + cn– + li+ + oh– mc001-4.jpg li+ + cn– + h2o.

The reaction 2kalsi3o8 + 2(h+ + hco3-) + h2o  →  al2si2o5(oh)4 + 2k+ + 2hco3- + 4sio2 shows that feldspar kalsi3o8 is chemically altered by hydrolysis to form chalky-looking clay mineral kaolinite al2si2o5(oh)4. the chemical breakdown of potassium feldspar due to exposure to acidic water results to the mineral binding with the water molecule to become kaolinite with silica and potassium and bicarbonate ions in solution.

The independent is what is changed, the dependent is was is measured or the reaction.