risolatziyovudd
30.06.2021 •
Chemistry
Give one important characteristic of the particles of matter very sort answer give
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Ответ:
The important characteristics of the particles of matter are – They are very, very small. They have spaces between them. They are constantly moving.
Ответ:
They are very very small
Ответ:
The reaction is exothermic.
Yes, released.
The heat released is 4,08x10³ kJ.
Explanation:
For the reaction:
C₃H₈(g) + 5O₂(g) → 3CO₂(g) + 4H₂O(l)
The ΔH is -2220 kJ, As ΔH is <0, The reaction is exothermic.
As the reaction is exothermic, the heat of the reaction will be released.
The heat released in 81,0g is:
81,0g C₃H₈××= 4,08x10³ kJ
-Using molar mass of C₃H₈ to convert mass to moles and knowing that there are released 2220 kJ per mole of C₃H₈-
I hope it helps!