luella614ox1zum
06.12.2021 •
Chemistry
What is important about the properties of a substance that has undergone a chemical
change?
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Ответ:
The substances created during chemical reactions, on the other hand, do not simply revert to their initial state. The most essential thing to remember is that the makeup of a material does not change when it undergoes a physical change, but it does change when it undergoes a chemical change.
Ответ:
the most important thing for you to remember is that in a physical change composition of a substance does not change and in a chemical change the composition of a substance does change
Ответ:
To calculate the average atomic mass, multiply the fraction by the mass number for each isotope, then add them together.