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Korvikt [17]
3 years ago
5

Please answer this question only if you know the answer! 30 points and brainliest!

Chemistry
2 answers:
liq [111]3 years ago
5 0

A. i think it’s  the  correct answer

telo118 [61]3 years ago
5 0

A. The circuit has insufficient power supplied by the battery

Was their meant to be a diagram?

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Sav [38]

Answer:

Sewage is a liquid containing wastes from households, industrial and agricultural activities discharged into water and it is dirty water.

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2 years ago
How many molecules are there in 80.0g of Mg (OH)2?​
DanielleElmas [232]

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8o/58*6*10power23 gives u the answer. molecules=moles*avagadrono

moles=weight/molecular wt

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8 0
3 years ago
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Calculate the standard enthalpy change for the reaction at 25 ∘ C. Standard enthalpy of formation values can be found in this li
meriva

Answer:

The standard enthalpy change for the reaction at 25^{0}\textrm{C} is -2043.999kJ

Explanation:

Standard enthalpy change (\Delta H_{rxn}^{0}) for the given reaction is expressed as:

\Delta H_{rxn}^{0}=[3mol\times \Delta H_{f}^{0}(CO_{2})_{g}]+[4mol\times \Delta H_{f}^{0}(H_{2}O)_{g}]-[1mol\times \Delta H_{f}^{0}(C_{3}H_{8})_{g}]-[5mol\times \Delta H_{f}^{0}(O_{2})_{g}]

Where \Delta H_{f}^{0} refers standard enthalpy of formation

Plug in all the given values from literature in the above equation:

\Delta H_{rxn}^{0}=[3mol\times (-393.509kJ/mol)]+[4mol\times (-241.818kJ/mol)]-[1mol\times (-103.8kJ/mol)]-[5mol\times (0kJ/mol)]=-2043.999kJ

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3 years ago
C
PolarNik [594]

Answer:

Gravity

because the earth which pulls any object towards it center and the velocity is achieved

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2 years ago
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List the elements and the amounts of each element below for 5 Li2S04.​
GREYUIT [131]

Answer:

Lithium has 5 elements, sulphur has 2 elements and oxygen has 4 elements

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