Open study

is now brainly

With Brainly you can:

  • Get homework help from millions of students and moderators
  • Learn how to solve problems with step-by-step explanations
  • Share your knowledge and earn points by helping other students
  • Learn anywhere, anytime with the Brainly app!

A community for students.

Would CaO + H20 --> Ca(OH)2 be a displacement reaction? if not what would it be and why?

Chemistry
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Join Brainly to access

this expert answer

SIGN UP FOR FREE
It's an acid-base reaction. CaO, like most of the metal oxides from the left side of the Periodic Table, is a basic oxide. So it reacts with water as any base would, generating OH-. You start with a solid (CaO) and add water, and you end up with Ca+2 and lots of OH- in solution -- a very alkaline solution. You may wonder where the proton transfer, if any, happens, and it happens when the CaO dissolves, as it does, bit by bit, as the reaction proceeds. This releases the Ca+2 and O-2 ions. The latter is a powerful base, and immediately rips an H+ off the nearest water: \[{\rm O}_{2}^{2-}(aq) + {\rm H}_2{\rm O}(l) \rightarrow 2 {\rm OH}^-(aq)\] In this reaction the H2O is acting as the Bronsted-Lowry acid.
you could also get away with calling this a synthesis reaction, since you start with more than one reactant and finish with only 1 product
Oops, the first reaction in my reaction should be \[{\rm O}^{2-}(aq)\].

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

"Reactant," that is.
Displacement reactions normally concern that a higher substance in the reactivity series will displace the one which is lower

Not the answer you are looking for?

Search for more explanations.

Ask your own question