ecide what kind of crystalline solid each element or compound in the table forms, and what kind of force holds the solid together. hen, rank the solids in order of decreasing melting point. That is, select "1" next to the solid with the highest melting point, "2" ext to the solid with the next highest melting point, and so on. (You may need to use the scrollbar to see all the choices.) element or compound CH₂Cl₂ Nb type of solid formed ? O C force holding the solid together melting point of solid ? O O

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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.