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Lyrx [107]
2 years ago
10

Which situation is does NOT occur during a chemical reaction?

Chemistry
1 answer:
jenyasd209 [6]2 years ago
8 0
I’m pretty sure it’s bonds are broken
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What is the most common climate in Brazil? A, B, C, or, D
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The most common type of climate in Brazil is d. tropical wet and dry.

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However, a large portion of the country has a <em>tropical savanna</em> climate. There are <em>distinct wet and dry seasons</em> and monthly mean temperatures are <em>above 18 °C</em> all year round .

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I believe the correct answer from the choices listed above is the second option. For liquids, it is the temperature that affects vapor pressure. <span>The </span>vapor pressure<span> of any substance increases non-linearly with </span>temperature<span> according to the Clausius–Clapeyron </span>relation<span>. Hope this helps. Have a nice day.</span>
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3 years ago
If the radius of copper is 0.128 nm, what is the pd of the (100) plane for copper in m-2?
kolbaska11 [484]

Copper has a FCC i.e. face centered cubic crystal structure. The 100 plane is essentially a planar section of the cubic cell where 4 Cu atoms occupy the 4 corners of the plane along with 1 Cu atom at the center of that plane. Each of the Cu atoms in the corners is shared by 4 adjacent unit cells. Thus, there are 2 Cu atoms present in the 100 plane (4*1/4 + 1 = 2).

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PD(100) = # atoms in the 100 plane/Area of 100 plane

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PD = \frac{2}{8*(0.128*10^{-9}) ^{2} } = 1.526*10^{19} m^{-2}

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