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3 years ago

7

WILL MARK BRAINLIEST!!!! HELPPPP

1 answer:

Lina20 [59]3 years ago

5 0

Answer:

A single distillation cycle is enough to separate the mixture. ... Simple distillation is the method used to separate substances in mixtures with significantly different boiling points, while fractional distillation is used for mixtures containing chemicals with boiling points close to each other.

Explanation:

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Which example is an organism?<br><br> lung<br><br><br> virus<br><br> heart<br><br><br> bacteria

mixas84 [53]

Answer:

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3 years ago

What is the enthalpy for reaction 1 reversed? reaction 1 reversed: 2co2 + 3h2o→c2h5oh + 3o2 express your answer numerically in k

Rama09 [41]

Answer: The enthalpy of the given reaction is 1234.8kJ/mol.

Explanation: Enthalpy change of the reaction is the amount of heat released or absorbed in a given chemical reaction.

Mathematically,

$\Delta H_{rxn}=\Delta H_f_{(products)}-\Delta H_f_{(reactants)}$

For the given reaction:

$2CO_2(g)+3H_2O(g)\rightarrow C_2H_5OH(l)+3O_2(g)$

$H_f_{(CO_2)}=-393.5kJ/mol$

$H_f_{(H_2O)}=-241.8kJ/mol$

$H_f_{(C_2H_5OH)}=-277.6kJ/mol$

$H_f_{(O_2)}=0kJ/mol$

$\Delta H_{rxn}=\Delta H_f_{(C_2H_5OH)}+3\Delta H_f_{(O_2)}-[2\Delta H_f_{(CO_2)}+3\Delta H_f_{(H_2O)}]$

Putting values in above equation, we get:

$\Delta H_{rxn}=[-277.6+3(0)]-[2(-393.5)+3(-241.8)]kJ/mol$

$\Delta H_{rxn}=1234.8kJ/mol$

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3 years ago

What do you know about Relative Dating

gizmo_the_mogwai [7]

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3 years ago

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