A voltaic cell with Ni/Ni2+ and Co/Co2+ half-cells has the following initial concentrations: [Ni2+] = 0.80 M; [Co2+] = 0.20 M. What is the initial E cell ?

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

Astudent completes a titration by adding 12.0 milliliters of naoh(aq) of unknown concentration to 16.0 milliliters of 0.15 m hcl(aq). what is the molar concentration of the naoh(aq)? 1)5.0 m 2)0.20 m 3)0.11 m 4)1.1 m

What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2