Answer:
a) 2.7×10^2, 2.7×10^-3, 7.2×10^-3
The answer is thinking hare and working hard and English
Answer不信任任何人
Explanation:
lemme know if this is right
Answer:
atoms can't be created nor can be destroyed.
atoms cat be broken down into smaller pieces.
all atoms of an element are identical.
chemical reactions cause atoms to be rearranged.
