A bimolecular reaction typically takes twice as long as a unimolecular reaction. The answer is true
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How is activation energy related to temperature?</h3>
- Consider what must occur for ClNO2 to react with NO to understand why reactions have an activation energy.
- First and foremost, these two molecules must clash in order to organise the system.
- Not only must they be brought together, but they must also be kept in precisely the appropriate orientation relative to one other in order for the reaction to occur.
- Some energy must also be used in order to break the Cl-NO2 bond and allow the Cl-NO bond to form.
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1 mole of NaCl contains 6.022×10^23 particles
∴. 922 moles of NaCl contains.... (multiplication of the 2 numbers)
Answer:
volume = 1.04 dm^3
Explanation:
Data:
volume = ?
Molarity, M = 0.25M
mass = 28.5g
Molar mass = 110.25g
Moles = ?
Solution:
First find number of moles,
moles = mass in gram / molar mass
= 28.5 / 110.25
= 0.258
≈ 0.26 moles
Now,
Molarity = ![\frac{no. of moles}{volume in dm^3}](https://tex.z-dn.net/?f=%5Cfrac%7Bno.%20of%20moles%7D%7Bvolume%20in%20dm%5E3%7D)
So,
Volume in dm^3 = ![\frac{no. of moles}{molarity}](https://tex.z-dn.net/?f=%5Cfrac%7Bno.%20of%20moles%7D%7Bmolarity%7D)
= 0.26 / 0.25
Volume = 1.04 dm^3
All of the following cause mechanical weathering EXCEPT d. carbonic acid, which causes chemical weathering. Mechanical weathering is defined as a physical process where rocks are broken down into smaller pieces through movement, abrasion, pressure, and temperature changes. Chemical weathering, on the other hand, makes use of chemical reactions to break down rocks.