7. Titanium can be extracted from its ore by two different methods. One uses a more reactive metal to displace the titanium:
TiO2 + 2 Mg -Ti + 2 Mgo
The second method is electrolysis of the ore. The overall reaction for this method is:
Tio, Ti + O2
a)
Calculate the atom economy for each reaction.
b)
Which method is 'greener'? What else might you want to know before making a final
decision?
->

i dont know

explanation:

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.