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2 years ago

3 H2S + 2 HNO3 +35 + 2 NO + 4 H2O

Chemistry

1 answer:

Anettt [7]2 years ago

3 0

Element Oxidized: S (S^(2-) --> S⁰)

Element Reduced: N (N^(5+) --> N(2+))

Oxidizing Agent: HNO3

Reducing Agent: H2S

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A student collected the data shown in the table below during an experiment.

pentagon [3]

Answer: The answer is C. A mercury thermometer is better to measure very small changes in temperature.

Explanation:

i took this quiz and this is the answer .

A) A mercury thermometer can measure the freezing point of a liquid that freezes at −80 °C.

B) An alcohol thermometer can measure the boiling point of a liquid that boils at 80 °C.

C) A mercury thermometer is better to measure very small changes in temperature.

D) An alcohol thermometer is better to measure the boiling points of colorless liquids.

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3 years ago

Recycling aluminum cans and taking shorter showers are two ways to practice the blank of natural resources

enyata [817]

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3 years ago

Read 2 more answers

A bomb calorimeter has a heat capacity of 783 J/oC and contains 254 g of water whose specific heat capacity is 4.184 J/goC. How

IrinaK [193]

Answer : The amount of heat evolved by a reaction is, 4.81 kJ

Explanation :

Heat released by the reaction = Heat absorbed by the calorimeter + Heat absorbed by the water

$q=[q_1+q_2]$

$q=[c_1\times \Delta T+m_2\times c_2\times \Delta T]$

where,

q = heat released by the reaction

$q_1$ = heat absorbed by the calorimeter

$q_2$ = heat absorbed by the water

$c_1$ = specific heat of calorimeter = $783J/^oC$

$c_2$ = specific heat of water = $4.184J/g^oC$

$m_2$ = mass of water = 254 g

$\Delta T$ = change in temperature = $T_2-T_1=(23.73-26.01)=-2.28^oC$

Now put all the given values in the above formula, we get:

$q=[(783J/^oC\times -2.28^oC)+(254g\times 4.184J/g^oC\times -2.28^oC)]$

$q=-4208.28J=-4.81kJ$

Therefore, the amount of heat evolved by a reaction is, 4.81 kJ

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3 years ago

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Rick Maurer i think that’s how you spell his last name

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2 years ago

This is science

irakobra [83]

Answer:

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b= outer

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2 years ago