1 / 11

Catalyst

Catalyst. 1. Balance the following reaction: … C +… S 8  … CS 2 2. Reactants are on the ________side, products on the ________side . (left or right) 3. In the compound, 4H 2 O, what is the 4 telling you?. Today’s Agenda. Remember…. Why do we have to balance chemical reactions?

mark-nixon
Download Presentation

Catalyst

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Catalyst 1. Balance the following reaction: … C +… S8 … CS2 2. Reactants are on the ________side, products on the ________side. (leftor right) 3. In the compound, 4H2O, what is the 4 telling you?

  2. Today’s Agenda

  3. Remember… Why do we have to balance chemical reactions? Law of Conservation of Mass!

  4. Balancing with a little extra… What if you have some polyatomic ions, like (NO3)? WHAT will you do?? When balancing equations that involve polyatomic ions, keep them together!

  5. Work it out… • H3(PO4) + K(OH)  K3(PO4) + H2O • Which polyatomics are we using? • PO4- phosphate • OH- hydroxide • Where is the OH on the other side? • In the H2O! It can be written as HOH.

  6. Balance It! __H3(PO4) + __K(OH)  __K3(PO4) + __H2O

  7. Your turn In your notes, try these problems: …Na(OH) + …H2(CO3) …Na2(CO3) + …H2O …Al(OH)3+ …H2(CO3) …Al2(CO3)3 +…H2O

  8. Today’s Agenda

  9. Practice, Practice, Practice… Check out this worksheet – you get to select your own “buffet” The questions you complete must add up to 100 points If you do more problems, you will receive extra credit

  10. Today’s Agenda

  11. Exit Slip 1. Balance the following reaction: __Ca+ __HNO3→ __H2+ __Ca(NO3)2 2. __Ca(NO3)2 + __Na2S  __CaS + __NaNO3 When the equation representing the reaction above is completed and balanced and all coefficients are reduced to lowest whole-number terms, the coefficient for NaNO3 is: a. 1 b. 2 c. 3 d. 4

More Related