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notka56 [123]
3 years ago
11

What is the cause of mechanical weathering? A. Rainwater

Chemistry
2 answers:
kolezko [41]3 years ago
6 0
It might be physical forces
erica [24]3 years ago
3 0

Answer: Option (D) is the correct answer.

Explanation:

When big rocks are broken down into smaller rocks due to the natural processes then this process of breaking is known as mechanical weathering.

Mechanical weathering is also known as physical weathering. It arises due to physical forces caused by rainwater and change in temperature etc.

Thus, we can conclude that out of the given options, physical forces is the cause of mechanical weathering.


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A trial of this decomposition experiment, using different quantities of reactants than those listed in the question above produc
Paul [167]

Answer : The volume of O_2(g) produced at standard conditions of temperature and pressure is 0.2422 L

Explanation :

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of O_2 gas = (740-22.4) torr = 717.6 torr

P_2 = final pressure of O_2 gas at STP= 760 torr

V_1 = initial volume of O_2 gas = 280 mL

V_2 = final volume of O_2 gas at STP = ?

T_1 = initial temperature of O_2 gas = 25^oC=273+25=298K

T_2 = final temperature of O_2 gas = 0^oC=273+0=273K

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

\frac{717.6torr\times 280mL}{298K}=\frac{760torr\times V_2}{273K}

V_2=242.2mL=0.2422L

Therefore, the volume of O_2(g) produced at standard conditions of temperature and pressure is 0.2422 L

5 0
3 years ago
I need help please ​
Alex17521 [72]

Answer: If you think about it, B. would be the most reasonable answer with the given factors.

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What is the speed of sound in dry air at 20°C?
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343 meters per second
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Is kingdom more specific taxon than family?
Eva8 [605]
Yes the kingdom is more specific
5 0
3 years ago
Help I’m stuck on this question :
Dimas [21]

Answer:

The first ionization energy is the energy it takes to remove an electron from a neutral atom.

hope it is helpful :)

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