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miv72 [106K]
3 years ago
7

What are natural resources

Chemistry
2 answers:
steposvetlana [31]3 years ago
8 0
Resources which are found in nature like water :3
Angelina_Jolie [31]3 years ago
5 0
Resources that come from nature, some examples include: Water, Gold, Oil, Coal, Apples, Oranges, etc. 
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When was the idea of an atom first developed? Describe this theory.
malfutka [58]

The existence of an atom was first suggested by Democritus, the idea is then developed in 1803 by John Dalton.

According to Dalton's atomic theory, matter is made up of atoms which are inseparable and can not be destroyed further. For a given element, all atoms have identical mass and properties. Atoms of two different elements combine to form compounds and rearrangement of these atoms results in chemical reaction.


7 0
3 years ago
explain what happens when anhydrous calcium chloride are exposed to the atmosphere for about two days​
PtichkaEL [24]

Answer:

Explanation:

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5 0
3 years ago
Attached are two chemistry questions I need help with. thank you to whoever helps me out
ivann1987 [24]
13.6 
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b) no, Cu after H
c) yes, Cl2 is more active than I2
4) yes, Mg is more active

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Al ³⁺  more active than Zn²⁺, Mn can react with  Zn²⁺, but not with Al ³⁺ , because Mn after Al but before Zn
4 0
3 years ago
The distance between Earth and its moon is 384000000 meters. Express this distance in kilometers.
Andreyy89
384000000m

to change from m to km you just need to divide that give unit in Meters by 1000

which equals,
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so,

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3 0
3 years ago
CHEMISTRY HELP PLEASE!
WINSTONCH [101]
1) is called 3-methyl hexane because we choose the longest possible continuous chain which has 6 carbons and start numbering from the side that gives the branch lowest possible number.

2) is called 2-methyl-2-butene because we have to give the double bond lowest possible number but in this case double bond in position 2 from both sides so we start from the side gives the branch number 2 not 3

3)  is called 7-Ethyl-4-decyne because we have to start from the side that gives the triple bond lowest possible number which is 4 and the branch will be at position 7 (note that the name of 10 carbon is incorrectly written in the choices is called decane (as alkane) or decyne when contains triple bond)

4) is called 2,3-Dimethyl pentane because it is 5 carbons (pentane) and we have two branches of the same alkyl (dimethyl) in positions 2 and 3

5) is called 1-Butanol because it contains 4 carbons and has one OH as functional group which take the suffix -ol in position 1 so we said the name as 1-butanol (remember to give the functional group lowest possible number)

6) is called propyl butyl ether because the longest chain is 4 carbons which called butyl and the smallest chain is propyl, it also has another name 1-Propoxy butane <span />
7 0
3 years ago
Read 2 more answers
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