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Tatiana [17]
3 years ago
5

Which of the following is the best example of an open system? (2 points)

Chemistry
2 answers:
Vsevolod [243]3 years ago
6 0
An open system is a system in which both heat and mass are escaping/coming in. (Think of a glass of water; water is evaporating and heat is melting the ice). A closed system is when only heat is escaping/coming in (A bottle of water where water vapor can't escape, but it can still be warmed) An isolated system occurs when neither heat nor mass can escape/come in (Think of a thermos; neither heat nor vapor can escape). Hope this helps!
Dmitriy789 [7]3 years ago
5 0
1) A Car engine.............. Hope it helps, Have a nice day :)
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Answer:

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Explanation:

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2 years ago
ANSWER ASAP AND I WILL GIVE BRAINLYEST!!!!
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20m

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8. Based on the formula, predict whether each of the following compounds is primarily ionic or primarily covalent. a. sodium iod
Lina20 [59]

primarily ionic  include = sodium iodide( NaI) ,   calcium chloride  ( CaCl2)


primarily covalent    include  - Ammonia (NH3) , Methane ( CH4)  and  

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Explanation

ionic  bond  is formed  when  there is complete transfer of electron between atoms. It occur  between metal  which  donate electrons and  a  non  metal which accept  electrons.

 for  example  in  formation  of CaCl2,   ca  donate  2 electron to 2  Cl atom, while  2 Cl atom accept the 2  electrons  to form ionic bond.

 Covalent bond  is formed  when two or  more  non  metal  form bond by sharing  electrons pairs.

For  example in NH3   3 pairs of electron are shared.  to form covalent bond.

                               

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2 years ago
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Eva8 [605]

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