Answer:
i believe it is all but c
Explanation:
Dmitri Mendeleev, he realized that the physical and chemical properties of elements were related to their atomic mass and arranged them into groups (columns)
Seismologists know how to read seismographs and determine the meaning of the data (strength, area, etc.) for the earthquake.
Answer:
B
Explanation:
when present
double bond the copound is alkene
Answer:
your answer will be b) bonds are breaking
