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CHEMICAL CHANGES (changes in state (mixing bicarbonate with vinegar, gas…
CHEMICAL CHANGES
changes in state
mixing bicarbonate with vinegar, gas bubbles are produced in the liquid ad move in its surface
when we notice forming in substances that are below their bowling point, it is an indication that a chemical change is occurring.
the formation of substances with a different state of aggreggation is due to the fact that the resulting substances have melting and boiling points differents than other substances.
changes of temperature
certain chemical changes occur accompanied with an emission or loss of heat which is greater than te produced in physical changes.
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smell changes
when we notice changes in smell, we can say the food has undergone a chemical change.
however, this does not mean that all chemical changes involve a change of smell.
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