3 years ago

what evidence is there in the diagrams to support the classification of these substances as elements

Chemistry

1 answer:

Novosadov [1.4K]3 years ago

5 0

Awnser your loooking fo its got to be aluminium

Explanation:i took the dang subgect

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2.67 grams of butane (C4H10) is combusted in a bomb calorimeter. The temperature increases from 25.68 C to 36.2C. What is the ch

slavikrds [6]

The internal energy : 1310.43 kJ/mol

<h3>Further explanation</h3>

Internal energy (ΔE) can be formulated for Calorimeter :

$\tt \Delta E=C\times.\Delta t$

C= the heat capacity of the calorimeter

Δt=36.2-25.68=10.52°C

$\tt \Delta E=5.73 kJ/^oC\times 10.52^oC=60.2796~kJ$

mol butane(MW=58,12 g/mol)

$\tt \dfrac{2.67}{58,12 }=0.046$

the internal energy (ΔE) in KJ/mol

$\tt \dfrac{60.2796}{0.046}=1310.43~kJ/mol$

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what evidence is there in the diagrams to support the classification of these substances as elements​

what evidence is there in the diagrams to support the classification of these substances as elements