The teacher wants us to calculate the ph of natural rainwater. we thought it was 7, but she said to consider water and carbonate species and use chemical equilibrium relationships and electroneutrality (where [h+] = [hco3-] + 2[co3 2-] + [oh-]) to get it. what is the ph and how do we calculate it?

A) it is created from magma

Answer a mineral that contains a combination of silicon, si, and oxygen, o, is a silicate mineral. hope it ^.^

"central america is subject to fierce which drop large amounts of on the region. another threat in the region is activity such as earthquakes and volcanoes caused by the shifting of the earth's large waves called may result in mass destruction. frequently crops are wiped out causing in the region." where is the question

B)  killing off supporters of his father to strengthen his own control.