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payshencec21
25.01.2021 •
Chemistry
A student drew a representation of the atoms of a solid. The illustration shows closely packed atoms vibrating, but remaining in the same relative position.
Which of the following changes must the student make to the illustration to
accurately represent the same substance in the liquid phase?
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Ответ:
Examples of physical properties: Density, color, boiling point, state of matter, appearance: dull or shiny, etc.
But we can also observe and measure chemical properties by reacting a substance with something else. For example, like mixing baking soda and vinegar together. The vinegar reacts with the baking soda and produces carbon dioxide: a new substance.
Some examples of chemical properties: Flammability, amount of heat that is released during combustion, toxicity (how much damage it causes to other organisms), radioactivity, and ability to oxidize (when you have metal that becomes rusty looking).