21. Using sodium ferulate, draw the catalytic cycle with H₂O₂ 22. What is the oxidation of iron in compound I 23. What is the oxidation of iron in compound II 24. What is the oxidation of iron in resting state? O= Fe compound I H₂O K₁ H₂O₂ K₂ Fe resting state compound II k3

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.