Use the changes of state interactive to answer the question. Identify the states of matter present at various points along the phase change diagram for water. The x-axis shows the energ added. The y-axis measures temperature in degrees Celcius. 140 Answer Bank 120 gas only solid only 100. 80. liquid and gas 60. 40 solid and liquid 20. liquid only 40 80 120 160 200 240 280 320 -20 -40 -60- Heat (kJ)
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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