General Chemistry 1 Review: bit.ly/3DNmZqb PDF Worksheet - 160 Questions: bit.ly/37SVLn6 Final Exams and Video Playlists: www.video-tutor.net/

Types of Chemical Reactions 1- Combustion Reaction • in combustion, something is burning and it releases a lot of heat energy. • if you see CO2 and water in the product then it's a combustion reaction. • All "Combustion" reactions are "Redox Reactions". 2- Synthesis\Combination reaction • A + B = AB • you simply combine the reactants to make the product. • If two pure elements combine to form a compound then it's a "Redox Reaction". • If two small compounds combine to form a large compound then it's probably NOT a "Redox Reaction". 3- Decomposition reaction • AB = A + B • the opposite of the Synthesis\Combination reaction: simply breaks down reactants to make the product. • heat and electricity cause decomposition reactions • If a compound breaks down into pure elements then it's a "Redox Reaction". • If a large compound breaks into two small compounds then it's probably NOT a "Redox Reaction". 4- Single replacement reaction • A + BC = AC + B • Just as the name says, a single molecule from the same equation replaces another. • For the most part, metals tend to replace metals and nonmetals tend to replace nonmetals. • All "Single Replacement" reactions are "Redox Reactions". 5- Double Replacement reaction • AB + CD = AD + BC similar to the Single replacement reaction; however, this one is double, and completely switches elements' places up. • Both of the reactants must be aqueous • When a double replacement happens between two aqueous solutions and the products all remain aqueous then no reaction took place. • A "Double Replacement" reaction is NEVER a "Redox reaction" • Double Replacement reaction types: - if a double replacement of two aqueous products happens and you find a solid in the product then it's called a "Precipitation Reaction". - If a double replacement happens between a strong acid and a strong base it will produce water and salt and will be called "Acid-Base Neutralisation Reaction". - if a double replacement of two aqueous products happens and you find a gas in the product then it's called a "Gas Evolution Reaction". ـــــــــــــــــــــــــــــــــ -Redox Reactions: Also called "oxidation-reduction reaction", is any chemical reaction in which the oxidation number of atoms changes. -Methane(CH4) is also called: Natural gas. -Almost all ionic compounds are considered salts.

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Here are some timestamps Synthesis- 2:10 Decomposition- 4:21 Single Replacement- 9:00 Double replacement- 12:08 Combustion- 0:00

Synthesis: Putting Together Decomposition: Breaking Up Single Replacement: “I’m leaving you for your friend” Double Replacement: “Wife Swap” Combustion: “Taylor Swift” - - All Credits to my science teacher - The Taylor Swift one: does the same thing over and over again. Gets a boy. They break up. She writes a song. - Hope this helps!

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Would you please tell how we can find out when it is aqueous,liquid or solid?

when i read the notes i didn't understand but after watching this tutorial, i clearly understand and can differentiate between different types of reactions. thanks alot

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Save time here: Synthesis a+b -> ab Decomposition ab -> a+b Single replacement A+BC -> AC+B Double Replacement AB+CD -> AD + BC Combustion using heat and basically anything with O2

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Professor Organic Chemistry Tutor, thank you for explaining and analyzing different types of Chemical Reactions in AP/General Chemistry. All Chemical Reactions come with different compounds. Breaking down large compounds into small compounds is an excellent way to comprehend Chemical Reactions. This is an error free video/lecture on KZfaq TV with the Organic Chemistry Tutor.

23:50 How do you know when a product is solid vs aqueous/soluble? Just memorize everything?

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on 28:39 one of the products isn't Na2SO4 but K2SO4.

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In 37:37, is it also possible to have a combustion reaction there since it produced water and CO2?

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What dry salts when mixed they produce benzene ,its called decorboxilatio reaction ,breacking carbon benzene bond in no oxygen and collect the yellow diatilate ,bit you have to redistill ,told you to use fractionatin column ,so you dont have to work twice

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In your other video of Predicting the Reaction You have inverted Synthesis and Decomposition reaction Pls, I'm confused which one is correct

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With the simple replacement reaction when do you know when to replace A with B or C ?

In the decomposition ex. 1 Why does metal oxide has still oxygen, if all the gases will escape to the air?

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I learned so much and you give so much example, that I may be able to learned and to understand the 4 chemical reactions THANK YOU!!!

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I get how you do the reactions but not the why Why does there have to be a reaction in general? E.g. Na2S + HCl -> NaCl + H2S Does everything react or do some stay the same?

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(Decomposition or analysis) vs (combination or synthesis), I believe analysis was missing at decomposition part

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What is the (g), (s) and (e) mean?

Mg + O2 = Mgo...can this be also a combustion reaction? coz a lot of heat and light is given off.

Why at 8:35 is the top equation not an acid replacement? Doesn’t an acid replacement produce salt and water?

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30:13 does k become (k)2 due to the separation from O and H?

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12:00 why doesn't the Br from the 3rd question have the 2 subscript and are we supposed to write all diatomic elements with their subscript in the second half of the equation? i.e., you said sodium iodide which implies it is not in it's natural state, but then you wrote I subscript 2. thanks!

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22:16 why the reaction takes place since Pb is less reactive than Na? PLEASE SOMEONE ANSWER ME

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In the example: Na2S + HCL -> NaCl + H2S Why did you put the 2 on the H instead of the Na for he product?

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Um octane is C8 H18 not H8

27:12 would that be a complete combustion?

Fe + O2 =Fe2O3 is this combustion or formation?