Unknown Story

Unknown Story
  Copy


More Options: Make a Folding Card




Storyboard Description

This storyboard does not have a description.

Storyboard Text

  • The food is being burnt!
  • No, actually, we are burning the coal to give us heat.
  • But isn't that bad for the environment? What happens to the coal?
  • Well, we give the coal heat and it reacts with the oxygen in the air...
  • ... Remember when we went camping, we didn't only use wood to make a fire. We used coal because it gives off a lot of fo heat when it is burnt.
  • Combustion reactions occur everywhere around the world in many real-life examples– even grilling at home.
  • Double Displacement Reactions
  • Pb(NO3)2 (aq) + 2NaI (aq) ➜ PbI2 (s) + 2NaNO3 (aq) 
  • Today we will talk about double displacement
  • Sometimes, combustion reactions can be bad for the environment. They always involve the compounds giving off oxygen as a product, as they react with oxygen.
  • Pb(NO3)2 (aq) + 2NaI (aq) ➜ PbI2 (s) + 2NaNO3 (aq) 
  • It is when the positive and negative ions of each reactant switch places right?
  • Coal is compromised mainly of carbon and reacts with oxygen in the air when heated. It is a good source of heat energy. The formula is: C + O2 --> CO2.
  • Pb(NO3)2 (aq) + 2NaI (aq) ➜ PbI2 (s) + 2NaNO3 (aq) 
  • Yes, the anions and cations of the reactants switch places to form two new compounds.
  • Double Displacement reactions are slightly more complex, and include 4 elements.
  • In today's class...
  • Double displacement is also known as metathesis and is when two elements switch places forming new compounds. It occurs often in terms of elements.
  • In this reaction, lead nitrate reacts with sodium iodide to form lead iodide and sodium nitrate. 
More Storyboards By 17d597eb
Explore Our Articles and Examples

Try Our Other Websites!

Photos for Class   •   Quick Rubric   •   abcBABYart   •   Storyboard That's TpT Store