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2 years ago

Where are these chemical reactions happening?

Chemistry

1 answer:

IrinaVladis [17]2 years ago

5 0

Answer:

At Anode: oxidation occurs i.e loss of electrons

At cathode: reduction occurs i.e gain of electrons

OPTION 1 is the correct answer

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Which type of stress force produces reverse faults?

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The answer you are looking for is compression.

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3 years ago

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Why do you think knowing enthalpy of reaction might be useful?

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The Enthalpy of Reaction is the adjustment in the enthalpy of a compound response that happens at a consistent weight. It is a thermodynamic unit of estimation helpful for figuring the measure of vitality per mole either discharged or created in a response.

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4 years ago

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A sample of propane (C3H8) has a mass of 0. 47 g. The sample is burned in a bomb calorimeter that has a mass of 1. 350 kg and a

Nady [450]

The amount of heat released by the sample has been 22.54 kJ. Thus, option C is correct.

The specific heat has been defined as the amount of heat required to raise the temperature of 1 gram of substance by 1 degree Celsius.

The specific heat has been expressed as:

$q=mc\Delta T$

<h3 /><h3>Computation for the heat absorbed</h3>

The iron and calorimeter are in side the closed system. Thus, the energy released by the sample, has been equivalent to the energy absorbed by the calorimeter.

$q_{released}=q_{absorbed}\\
q_{released}=m_{calorimeter}\;c_{calorimeter}\;\Delta T$

The given mass of calorimeter has been, $m_{calorimeter}=1350\;\rm g$

The specific heat of the calorimeter has been, $c_{calorimeter}=5.82\;\rm J/g^\circ C$

The change in temperature of the calorimeter has been, $\Delta T=2.87^\circ \rm C$

Substituting the values for heat released:

$q_{released}= 1350\;\text g\;\times\;5.82\;\text J/\text g^\circ \text C\;\times\;2.87^\circ \text C\\
q_{released}=22,549.5\;\text J\\
q_{released}}=22.54\;\rm kJ$

The amount of heat released by the sample has been 22.54 kJ. Thus, option C is correct.

Learn more about specific heat, here:

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3 years ago

What is produced when LiOH neutralizes HCl

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LiOH+HCl ---->LiCl+H2O
Base...Acid......Salt...

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3 years ago

If an acid is splashed on your skin, wash at once with

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D. plenty of water

First, the affected area is washed with plenty of water for 15-20 minutes. Then washed with a weak solution of sodium bicarbonate.

H⁺ + HCO₃⁻ → H₂O + CO₂

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3 years ago