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mina [271]
2 years ago
7

What is the difference between mechanical weathering and chemical weathering?? (extra points for whoever answers it first.)

Chemistry
1 answer:
muminat2 years ago
3 0

Answer: Mechanical weathering breaks rocks into smaller pieces without changing their composition.  

Chemical weathering breaks down rocks by forming new minerals that are stable at the Earth's surface.

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When an egg is placed in a hot frying pan, the yolk and white become firmer and more opaque, and steam is emitted.
hodyreva [135]

Answer:

Formation of Gas, Color Change, and Absorption of heat is the Answer.

Explanation:

I just took the test.

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3 years ago
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The molecule CH20 contains two single bonds and one double bond.<br> True<br> False
dem82 [27]

Answer:

True

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6 0
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Hydrogen peroxide (H202) is a compound made from two elements: hydrogen and oxygen. Water(H20) is also a compound made from hydr
MrRissso [65]

one is air and the other is a liquid 

7 0
3 years ago
What type of chemical reaction is C6H6 + CI2 = C6H5CI + HCI
elixir [45]

for it to be balanced in this case would be " <em>4</em> C6H6 + <em>6</em> CI2 = <em>3</em> C6H5CI + <em>9</em> HCI" therefore it's be a <u>Double Replacement</u>

8 0
3 years ago
16) How many photons are contained in a burst of yellow light (589 nm) from a sodium lamp that contains 609 kJ of energy?
Len [333]
The correct answer to this question is this one:

find the energy of one photon:

<span>E=h*<span>c/λ
</span></span>
divide the energy given by the energy of one photon of that wavelength

What I've done so far is convert wave length to m and energy to j. 

E photon = h * x / wave length
E = (6.626 x 10^-43)(3.00 x 10^8) / 587 ^ -9  = 3.38 x 10 ^18 J
3.38 x 10 ^18 J x 1000 kj / 1 j = 3.37 x 10 ^ 16 Kj
609 kJ/  3.37 x 10 ^ 16 Kj =  1.81 x 10 ^ 16

E = (6.626 x 10^-34)(3.00 x 10^8) / 587 ^ -9 = 3.38 x 10 ^19 J
3.38 x 10 ^19 J x 1000 kj / 1 j = 3.37 x 10 ^ -16 Kj
609 kJ/ 3.37 x 10 ^ 16 Kj = 1.81 x 10 ^ 18 but the answer is  1.81 × 10^24 photons

3.38 x 10 ^-19 J
should be negative

then 3.38 x 10 ^18 J x 1kJ/1000 J

you're converting from J to kJ.. just like meters to kilometres, you wouldn't multiply you would divide
4 0
3 years ago
Read 2 more answers
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