Avolcanic eruption takes place in a location. lava flows down the volcano unto human habitation. it blocks the flow of a river and makes it change its path. which earth systems interact during this process? geosphere, atmosphere, and biosphere hydrosphere, geosphere, and biosphere atmosphere, geosphere, and cryosphere biosphere, cryosphere, and hydrosphere

Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5