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Biology; Chemistry; Physics: Post your doubts here!

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part two second type of polymers condensation (lose of molcule usually water) thre types amide linkage (nylon and protien) ester linkage (fats lipids and terylene) and ether linkage (poly(ether and carbohydrates) monomers include di amine aicaboxylic acid diol
i sont think ether linkage is in our syllabus!
 
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Tell me some easy way to memorize the reactivity of metals. i know my reactivity series but not which metals react with cold water, which with hot water, then with acids and so on. i can't remember if a metal will react with a specific substance or not :mad:
 
Messages
1,074
Reaction score
431
Points
93
Tell me some easy way to memorize the reactivity of metals. i know my reactivity series but not which metals react with cold water, which with hot water, then with acids and so on. i can't remember if a metal will react with a specific substance or not :mad:
Above magnesium, react with cold water to form Metal hydroxide
below magnesium till copper, react with steam (only some of the beginning ones) and dilute HCl to form metal Oxide

remember:
metal + (cold)water = MetalOH + H2
metal + steam = MetalO + H2
 

asd

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Tell me some easy way to memorize the reactivity of metals. i know my reactivity series but not which metals react with cold water, which with hot water, then with acids and so on. i can't remember if a metal will react with a specific substance or not :mad:
Metals below H, can not react with Acid. Since they cannot displace the H ion in the acid. Metals above H will react with acids. Metal FAR above H (Like Zn, Al, Fe) can even react with dilute acid/Hot water. And metals FURTHER above like Na, Rb, K (Most group 1 metals) Mg, Ca, will react with cold water.
 
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Tell me some easy way to memorize the reactivity of metals. i know my reactivity series but not which metals react with cold water, which with hot water, then with acids and so on. i can't remember if a metal will react with a specific substance or not :mad:
^-- React with Cold water --^
Please
Send
Cats
Monkeys
^-- React with Hot water And Dilute Acids --^
And
Zebras
In
Locked
^-- Don't react With Dilute Acids --^
Hired
Cages
Soon
 
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areeba i know. i want to know for thin plate. if u donot want to answer please ignore it . thankyu
Really sorry! i didn't know you'll get serious.......btw i wanted to help u....that's why i am saying that the answer would be A for thin plate and B if asked for THickest plate :)
Sorry again :(
 
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Really sorry! i didn't know you'll get serious.......btw i wanted to help u....that's why i am saying that the answer would be A for thin plate and B if asked for THickest plate :)
Sorry again :(
no problem . sorry for being harsh i thought u wr fooling:(
 
Messages
1,394
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1,377
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173
Tell me some easy way to memorize the reactivity of metals. i know my reactivity series but not which metals react with cold water, which with hot water, then with acids and so on. i can't remember if a metal will react with a specific substance or not :mad:
 
Messages
2,703
Reaction score
3,939
Points
273
^-- React with Cold water --^
Please
Send
Cats
Monkeys
^-- React with Hot water And Dilute Acids --^
And
Zebras
In
Locked
^-- Don't react With Dilute Acids --^
Hired
Cages
Soon
u know what would happen if u react potassium with cold water. u will be burnd
 
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