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Nat2105 [25]
3 years ago
9

I need help mbrainliest

Chemistry
1 answer:
Natali5045456 [20]3 years ago
5 0

Answer:

Heterogeneous- C, Homogeneous-D, Emulsion-B, Colloid-A

Explanation:

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When two balls collide, the momentum of the balls after the collision is explained by?
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(m1+m2)v

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A geologist finds an area with a lot of slate, a type of metamorphic rock, on the surface of the land. What might this indicate
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Two things that can be deduced by this finding would be that the location was most likely a very muddy area with lots of clay minerals, as well as having lots of crustal movements. This is because slate is created when crustal movement buries clay minerals and other materials in the crust of the Earth. This is later melted and squeezed together from the sheer heat that is applied  being so far underground. Therefore, creating what we now know as Slate.

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2 years ago
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What properties of water are related to Oxidation?
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2 years ago
A certain first-order reaction is 27.5 percent complete in 8.90 min at 25°C. What is its rate constant?
jeyben [28]

Answer:

k= 0.145min^{-1}

Explanation:

Hello there!

In this case, according to the given information, it turns out necessary for us remember that the first-order kinetics is given by:

ln(A/A_0)=-kt

Whereas the 27.5% complete means A/Ao=0.275, and thus, we solve for the rate constant as follows:

k=\frac{ln(A/A_0)}{-t}

Then, we plug in the variables to obtain:

k=\frac{ln(0.275)}{-8.90min}\\\\k= 0.145min^{-1}

Regards!

4 0
3 years ago
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