Chemistry 3-26-09 Single Replacement, Double Replacement & Combustion Reactions
CHEMISTRY: Moving right along….here’s the lecture from Thursday on the last of the types of chemical reactions. You’ll need to memorize all 17 of them (by Monday!), but don’t just memorize them. Make sure you can apply them as well. When you start to work any equation (like tomorrow on the worksheet!), first determine what type of reaction it is, then figure out what rule applies and follow it to determine the products. Don’t forget the quiz on Monday. I believe in you! You can do it!!
March 26th, 2009 at 6:51 PM
in a combustion reaction, it’s not just carbon dioxide and water that are always formed… is it? can other substances be formed as well or is it always just carbon dioxide and water?
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March 26th, 2009 at 7:20 PM
Mackenzie
Yes, the product will always be CO2 and H2O.
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March 26th, 2009 at 7:39 PM
what is the definition of a combustion reaction?
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Mary Gates Talbot Reply:
March 27th, 2009 at 8:05 AM
Brandon- a combustion reaction is a reaction in which carbon dioxide (CO2) and water (H20) will be formed. (hydrocarbons burn in air to produce CO2 and H2O)
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March 26th, 2009 at 7:41 PM
what is a single replacement compound?
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March 26th, 2009 at 7:43 PM
sorry, i mis-typed. what is a single replacement reaction?
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March 26th, 2009 at 7:47 PM
Abby,
a single replacement reaction is when an element takes the place of another element in a compound
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March 26th, 2009 at 7:56 PM
What is electrolysis?
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Brennon Chapman Reply:
March 31st, 2009 at 8:22 PM
Leslie, Electrolysis is when you separate compounds by passing an electric current through them.
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March 26th, 2009 at 8:06 PM
How can you tell the difference between a single-displacement reaction and a double-displacement reaction?
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March 26th, 2009 at 9:08 PM
Leslie,
Electrolysis is the use of electricity to decompose a compound to yeild the original elements that composed it.
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March 27th, 2009 at 12:52 AM
what’s a double replacment reaction?
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March 27th, 2009 at 7:06 AM
In a double displacement reaction, metals only replace metals..right?
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March 27th, 2009 at 8:07 AM
Can a less reactive metal replace a more reactive metal in bonding?
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Allen Wade Reply:
March 27th, 2009 at 9:39 AM
Kaele:Only metals more reactive then the one its replacing can trade places.
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March 27th, 2009 at 8:26 AM
i am pretty sure.
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March 27th, 2009 at 9:07 AM
What is produced from a double replacement reaction?
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jimbob Reply:
March 31st, 2009 at 10:47 AM
look it up in your book .. quit being lazy
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March 27th, 2009 at 9:27 AM
DJ…
two new compounds are formed from the reactants.
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March 27th, 2009 at 1:09 PM
how do you tell the difference between single, double, and synthesis?
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March 27th, 2009 at 3:03 PM
what is the difference in a single and double replacement reaction?
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March 27th, 2009 at 8:41 PM
is it possible to have a triple-replacement reaction?
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March 27th, 2009 at 9:37 PM
How do you know if a reaction is single-replacement or double-replacement?
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March 27th, 2009 at 11:53 PM
THIS LECTURE HELPED ME GREATLY IN BALANSING EQUATION.
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March 28th, 2009 at 1:34 PM
Cody: It deoends in what products are formed in the reaction.
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March 28th, 2009 at 1:34 PM
*depends*
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March 30th, 2009 at 9:22 PM
Double replacement reactions always require two compounds
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March 31st, 2009 at 10:40 AM
Cody: the formula in our notes will help with what kind of reaction it is.
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March 31st, 2009 at 5:26 PM
is it possible to have more than 5 different reactions in a single replacement reaction
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March 31st, 2009 at 6:00 PM
@ Macy: A single replacement reaction involves one compound and one element (or polyatomic ion/acid) except in the case of reactions with water.
Double replacements involve two compounds creating two new compounds.
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March 31st, 2009 at 8:26 PM
Audrey: There are 5 different types of reactions in single replacement reactions and there aren’t anymore in that type of reaction
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April 1st, 2009 at 7:22 AM
Cody:
You can tell if a reaction is single replacement or double replacement by looking at the formulas we were given, but if it is a double replacement it always has two compounds as the reactants and the products.
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April 1st, 2009 at 9:57 AM
Hey Ms. skinner, is it ok if in the project we are attacked by nomad bandits, kill them using the supplies we got off the plane, and steal their supplies and radio for help?
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April 1st, 2009 at 10:03 AM
TIm, you carrot, you’re not supposed to ask that here.
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April 1st, 2009 at 10:05 AM
Just so you guys know, the rule that metal oxides dont decompose above a certain level on the activity series only applies to metal oxides- not any compound with metal and oxygen.
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April 1st, 2009 at 4:56 PM
kara:i think that is right.
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