Identify each reaction as combination decomposition...

Text: Identify each reaction as combination, decomposition, combustion, single replacement, or double replacement. A. 3Ba(s) + N2(g) -> Ba3N2(s) B. 2Ag(s) + H2S(aq) -> Ag2S(s) + H2(g) C. 2C2H6(g) + 7O2(g) -> 4CO2(g) + 6H2O(g) D. PbCl2(aq) + K2SO4(aq) -> 2KCl(aq) + PbSO4(s) E. K2CO3(s) -> K2O(aq) + CO2(g)

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Transcript

00:01 It gives us a list of different reactions and we need to figure out what kind of reaction they are.

00:06 So for the first one, we have barium nitrogen combining to form barium nitride.

00:20 And so this reaction would be considered a synthesis reaction or a combination reaction.

00:28 Because, as you can see, i'm combining my two reactions to form one single product.

00:38 And so that's the key if you know if it's a synthesis or combination reaction is how many products are formed.

00:44 If there's one singular product and then it's going to be a combination reaction.

00:48 The next one, we have silver and hydrogen sulfide forming a silver sulfide and hydrogen sulfide and hydrogen gas.

01:00 This one would be considered a single replacement reaction because how many compounds are switching out the various elements.

01:12 So i have one compound here.

01:14 That's the key is one compound is switching its first element.

01:20 So my cat ion is switching out for a different cat ion.

01:24 And so we switch out our silver with our hydrogen.

01:27 Oftentimes in a single replacement, you'll have free elements.

01:34 So elements not bonded with anything else other than itself.

01:38 So i started out with free silver, and then i ended with free hydrogen gas.

01:43 And so that tells me that only one of my compounds replaced...

Question

Please give Ace some feedback