koranbutterton
24.05.2021 •
Chemistry
La combustion d'un clou de 12 g nécessite
environ 3,6 L de dioxygène. Détermine la masse
de dioxygène nécessaire à cette transformation,
sachant que 1 L de dioxygène pèse environ 1,4g.
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Ответ:
New substances formed when breaking of bonds take place and new bonds get formed which results in formation of new products. That breaking of bond is a chemical change because in such a process composition of substance gets changed and forms a new substance.