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13.10.2019 •
Chemistry
100 brainliest if
which stays the same during chemical reactions?
a. the overall types of atoms only
b. the overall numbers of atoms only
c. both the overall types and numbers of atoms
d. neither the overall types or numbers of atoms
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Ответ:
The answer is C as obvious
Atoms change their composition thus changing their type and thus changing their numbers
Ответ:
The human respiratory system contains the organs that allow us to get the oxygen we need and to remove the waste carbon dioxide we do not need. It contains these parts: two lungs. ... various structures in the chest that allow air to move in and out of the lungs.