1.120 Mercury metal is liquid at normal temperatures but freezes at -38.9°C. What is this temperature in kelvins? in de- grees Fahrenheit? 1.121 Zinc metal can be purified by distillation (transforming the liquid metal to vapor, then condensing the vapor back to liq- uid). The metal boils at normal atmospheric pressure at 1666°F. What is this temperature in degrees Celsius? in kelvins? L.122 lodine is a bluish-black solid. It forms a violet-colored Vapor when heated. The solid melts at 236 F. What is this tem- perature in degrees Celsius? in kelvins?
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.
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