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Effectus [21]
3 years ago
5

Why might a major volcanic eruption lead to cooler temperatures of Earth's surface?

Chemistry
1 answer:
EastWind [94]3 years ago
6 0
When a volcano erupts it releases a large amount of dust, smog, rock, and other materials. Basically, these bits and pieces float to form a metaphorical dust cloud. These clouds can often block out the sun like an ordinary cloud; however, because the cloud is dark, even less sun will be able to get through. So because the sun can't reach the ground, the temperature might decrease.
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Calculate the standard free-energy change for the following reaction at 25 °C. Standard reduction potentials can be found here.
Gelneren [198K]

Since there are no given data for us to solve this problem, I will explain what a Standard Reduction Potential is. For example, if a student had an experiment and he wanted to know what is the most efficient and powerful redox reaction involving an uncommon combination of chemicals. The student would most likely record information in the Standard Reduction Potential that showed the voltage generated by the reaction in Aqueous Solution at 25 degrees Celsius and 1 atmosphere. This is a list of half reaction of ions in the solution at standard temperature and pressure.

3 0
3 years ago
A sample of propane, C3H8, contains 15.5 moles of carbon atoms. How many total moles of atoms does the sample contain?
nekit [7.7K]

Answer:

H = 41.3 mol H; Atoms = 56.8 mol

Explanation:

A molecule of propane contains eight atoms of H for every 3 atoms of C or <em>8 mol H atoms for every 3 mol C atoms</em>.

∴ \text{Moles of H atoms} = \text{15.5 mol C atoms} \times \frac{\text{8 mol H atoms }}{\text{3 mol C atoms }} = \text{41.3 mol H atoms}

Total atoms = 15.5 mol C atoms + 41.3 mol H atoms = 56.8 mol atoms

3 0
3 years ago
Determine the freezing point of a solution which contains 0.31 mol of sucrose in 175 g of water. kf = 1.86ï°c/m
barxatty [35]
Freezing point depression is a colligative property.

The formula that rules it is:

ΔT f = Kf * m

Where m is the molality of the solution => m = moles of solute / Kg of solvent

=> m = 0.31 mol / 0.175 kg = 1.771 m

And kf = 1.86 °C/m

=> ΔTf = 1.771 m * 1.86 °C / m = 3.3 °C

 => Freezing point of the solution = normal freezing point of water - 3.3 °C = 0 - 3.3°C = - 3.3°C.

Answer: -3.3 °C


8 0
3 years ago
3. An unknown compound was found to have a molar mass of 75.0 g/mol and to
Greeley [361]
Cat and dog in the pool and it’s raining
3 0
3 years ago
How can the motion of an object that is NOT moving change?
Alexeev081 [22]

Answer:

Inertia.

Explanation:

The resistance of any physical object to any change in its velocity. This includes changes to the object's speed, or direction of motion. An aspect of this property is the tendency of objects to keep moving in a straight line at a constant speed, when no forces act upon them.

5 0
3 years ago
Read 2 more answers
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