Let's imagine that we were going to start a company that produces
spectroscopes to sell to general chemistry students. To ensure that all the
spectroscopes created the same calibration line and equation we need to be sure it was always the same we should compare all these with the same standard spectroscope while manufacturing
hope this helps
There's a certain ph or acidic level to all things...and also the chemical formula can be stable from one substance and if another substance mixes and makes the new substance unstable then u start to see a chemical change
There are <em>three</em> possibilities:
synthesis
redox (reduction/oxidation)
endothermic