3. How is the number of digits determined for an answer obtained by adding or subtracting? Is a body temperature of 39.4°C a normal temperature or does it indicate a fever? 4.

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Q: ОН H2C=CH2 `H. ENE YDE HOL

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Q: 3-(2-bromo-3-methylbutyl)-4-chloro-2-ethyl-1-methylcyclopent-1-ene How do you draw this molecule?

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Q: molecular formula

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Q: 4.23 What alkenes would give the following alcohols on hydration? (Red = 0). (a) (b)

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.