Saphire

i need some help with my science homework it`s the chemistry GCSE core:C2 TASK SHEET i need to design a leaflet explaining how to extract gold aluminium and iron. the words i need to include are anode,bauxite,carbon,carbon dioxide ,cathode,crust,cryolite,...

I want a sophisticated transition word for the first paragraph of a literary essay, what should i use?

Write a chemical reaction showing an amphiprotic anion reacting as a base in water. Thank-you

the solution with the lowest pH is A. 1.0 M HF B. 1.0 M HCN C. 1.0 M HCOOH D. 1.0 M CH3COOH and how did you find it?

What isthe ionization of water?

can you explain why [(pi)^1/2]/pi = 1/[pi^1/2]??

How to find [H3O+] when i have [OH-]?

Is depolarization positive and repolarization negative?

Calculate the [h30+] in a 0.010M solution of Sr(OH)2

In a titration curve, how do i find the pH1/2??

I do not know what points to use