Objective: Create a graph showing the phase change of water from a solid to a gas. Do this on a graphing paper and send the picture of the graph. 1. Using the data below, create a graph. Place temperature on the y axis and time on the x axis. Temperature Time (Minutes) Temperature Time (Minutes) (degrees Celsius) (degrees Celsius) -2 32 11 -1 1 45 12 2 54 13 62 14 4 74 15 3 83 16 11 6 89 17 20 7 94 18 8 98 19 24 100 20 28 10 100 21 Answer the following questions 2. At what temperature did melting occur? 3. At what temperature did vaporization occur? 4. What causes the phase changes in matter? 5. What phase change would happen if the water vapor (gas) were cooled to 80 degrees? 3. 22
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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