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Ksju [112]
3 years ago
5

what is the best description of weathering? A. breakdown of rocks through mechanical or chemical processes. B.when rocks layers

from horizontally. C.building up earth's surface through deposition. D. processes that make it difficult to determine the age of rocks.
Chemistry
1 answer:
Law Incorporation [45]3 years ago
7 0
The answer is A: breakdown of rocks through mechanical or chemical processes.
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Which will result in positive buoyancy and cause the object to float?
Darina [25.2K]
I would say D. Let me know if i am wrong.
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A photon has a wavelength of 750 no. What is the energy in joules
zhuklara [117]

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What are the errors in this table check all that apply
Marat540 [252]

Answer:

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Explanation:

Hi there,

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4 0
2 years ago
Calculate the amount in grams of Na2CO3 needed in a reaction with HCl to produce 120g NaCl?
klemol [59]
The balanced chemical reaction is written as :

Na2CO3<span> + 2HCl === 2NaCl + H2O + CO2
</span>
We are given the amount of NaCl to be produced from the reaction. This will be the starting point for the calculations. We do as follows:

120 g NaCl ( 1 mol / 58.44 g) ( 1 mol Na2CO3 / 2 mol NaCl)( 105.99 g / 1 mol ) = 1108.82 g Na2CO3 needed
8 0
3 years ago
If the spin of one electron in an orbital is clockwise, what is the spin of the other electron in that orbital?
umka2103 [35]

Answer:

The other electron must have anticlockwise spin.

Explanation:

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If the one electron is clockwise the other must be in anti clockwise direction. The clockwise direction is represented by the sign +1/2 while anti clockwise direction is represented by -1/2.

According the pauli principle, the two electrons must have different fourth electronic quantum number. The electron in same orbital have same first three quantum number i.e, n=1 l=0 and ml =0 in case of first subshell.

3 0
3 years ago
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