The solubility of lead nitrate at 100 degrees C is 140.0g/100g of water. A solution at 100 degrees C consists of 57.0 g of lead nitrate in 64 g of water. When the solution is cooled to 10 degrees C, 25g of lead nitrate crystallize out. What is the solubility of lead nitrate in g/100g water at 10 degrees C?

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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.