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Darina [25.2K]
3 years ago
7

Which equation represents the reduction half-reaction for this redox equation? Ca + Al(NO3)3 Al + Ca(NO3)2

Chemistry
2 answers:
liraira [26]3 years ago
6 0
The correct answer is C. :)
Anton [14]3 years ago
6 0
C......Plato lives matter


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How many grams of C3H8 are in a 7 L tank at 293 K and 5.45 atm?
Sophie [7]
1.59 moles















































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8 0
3 years ago
balloon that had a volume of 3.50 L at 25.0°C is placed in a hot room at 40.0°C. If the pressure remains constant at 1.00 atm, w
kotegsom [21]

Answer:

The answer to your question is V2 = 3.7 L

Explanation:

Data

Volume 1 = 3.5 L

Temperature 1 = 25°C

Temperature 2 = 40°C

Pressure = cte.

Volume 2 = ?

Formula

To solve this problem use the Charles' law

             V1/T1 = V2/T2

- Solve for V2

             V2 = V1T2 / T1

- Convert temperature to °K

Temperature 1 = 25 + 273 = 298°K

Temperature 2 = 40 + 273 = 313°K

- Substitution

              V2 = (3.5)(313) / 298

- Simplification

              V2 = 1095.5 / 298

- Result

              V2 = 3.7 L

8 0
3 years ago
Read 2 more answers
How does skin defend the body against pathogens?
stira [4]
C. Because skin acts like a barrier that doesn’t allow pathogens or other micro organisms to enter unless their is a cut, scratch, etc. on your skin.
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3 years ago
Where is the energy for cell division generated?
Zepler [3.9K]
Mitochondria because is the power house for cell,site for respiration or energy release.
4 0
4 years ago
Explain why the standard enthalpy of formation () for Cl2 (g) is zero, but its standard entropy is larger than zero.
Galina-37 [17]

The standard enthalpy of formation for chlorine is zero but the standard entropy is larger than 0 because it is the elemental state of chlorine.

The standard enthalpy of formation for chlorine is zero because cl2 is the elemental state of chlorine and it does not require any energy for the formation of the standard state of chlorine.

The entropy of any system cannot be negative. It can only be positive or zero.

The entropy of a system will become zero only at a absolute zero temperature.

That's why the entropy of chlorine in elemental state is more than zero because absolutely zero temperature can't be obtained.

To know more about entropy, visit,

brainly.com/question/6364271

#SPJ4

7 0
1 year ago
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