Part 8 Chapter 1 Chemistry

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The book goes on to say, " With the introduction of atomic theory and a more complete understanding of the nature of both mass and energy, it was found that a relationship exists between these two concepts. Einstein formulated the 'Law of Conservation of Mass and Energy, which states that mass and energy are interchangeable under special conditions. The conditions have been created in nuclear reactors and accelerators, and the law has been verified. This relationship can be expressed by Einstein's famous equation: " E=mc to the 2nd; Energy=Mass x (velocity of light) to the 2nd. Then talking about Measurements and Calculations under the Scientific Method. The book says here "in most cases the scientists involved use an orderly process to work on their projects and discoveries. The process researchers use to carry out their investigations is often called the scientific method. It is a logical approach to solving problems by observing and collecting data, formulating a hypothesis, and constructing theories supported by the data. The formulating of a hypothesis consists of carefully studing the data collected and organized to see if a testable statement can be made with regard to the data. The hypothesis takes the form of an "if. . . then" statement. If certain data is true, then a prediction can be made concerning the outcome. The next step is to test the prediction to see if it withstands the experimentation. The hypothesis can go through several revisions as the process continues. If the data from experimentation shows that the predictions of the hypothesis are successful, scientists usually try to explain the phenomena by constructing a model. The model can be a visual, verbal, or mathematical means of explaining how the data is related to the phenomena. We have more to present of Chapter 1.