For questions 27-28, please refer to the problem below. Listed below are the boiling temperatures of various substances. Substance Boiling temperature, °C 2,582 2,800 Copper Iron Silver Wax Naphthalene balls 27. What regularity seems to exist in this data? A. Metals have high boiling temperature. B. Silver has the highest boiling temperature. C. Naphthalene balls have the lowest boiling temperature. D. Iron boils at a temperature about 10 times the boiling temperature of wax. 2,193 282 174 28. The measured properties mentioned in the problem is an example of B. Chemical, Extensive. A. Physical, Extensive. C. Physical, Intensive. D. Chemical, Intensive.

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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.