Which positive and negative ions are essential for chemical reactions

The kobe habor wharfs where the center of japanese exports to other countries. it had 200 wharfs before the earthquake. how many wharfs remained undamaged after the earthquake? a. 130 wharfts b. 3 wharfs c. 30 wharfs

Select the best answer for the question, ly 12. which of the following behaviors is not an inherited behavior?

Someone me with this: a mineral' is determined by its actomic structure.