5 Matching Annotations
  1. Sep 2021
  2. gschemistry.pressbooks.com gschemistry.pressbooks.com
    1.2 Phases and Classification of Matter
    3
    1. MatthewAdams02 30 Sep 2021
      The original substances (lead, lead oxide, and sulfuric acid), which are capable of producing electricity, are changed into other substances (lead sulfate and water) that do not produce electricity, with no change in the actual amount of matter

      I asked this question in another class, but this sentence makes me want to ask it again. there are certain combinations that can create electricity, so would this make electricity a chemical reaction? this first time I asked, the answer was that it is not, but electricity is a component to many chemical reactions.

    2. MatthewAdams02 30 Sep 2021
      A fourth state of matter, plasma, occurs naturally in the interiors of stars, and in some other high-temperature environments (both natural and man-made), such as lightning strikes, certain television screens, and specialized analytical instruments used to detect trace amounts of metals.

      Looks like my earlier question was answered here!

    3. MatthewAdams02 30 Sep 2021
      The three most common states or phases of matter are solid, liquid, and gas.

      It is said that the fourth state of matter is plasma, which can be formed by heating a neutral gas. Is it true that plasma is categorized as the fourth matter? And will we be learning about it, or is that for a higher level of chemistry?

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  3. gschemistry.pressbooks.com gschemistry.pressbooks.com
    1.1 Chemistry in Context
    2
    1. MatthewAdams02 30 Sep 2021
      most of the subjects in the microscopic domain of chemistry—such as atoms and molecules—are too small to be seen even with standard microscopes and often must be pictured in the mind

      Does this mean that the images we usually see of atoms in science are just imaginative thought of what they really look like?

    2. MatthewAdams02 30 Sep 2021
      Scientific progress is seldom neat and clean: It requires open inquiry and the reworking of questions and ideas in response to findings

      This comment suggests that in most cases, an experiment may never end because there will always be room for questioning and revision, which makes much sense. For example, fire is a chemical reaction that we are always finding out more about and finding uses for, whether it's using it or finding ways to put it out and we may never know all there is to know about it. It's just fascinating to see that there is always more to learn about one thing.

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