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muminat
3 years ago
9

Hurry answer this pls so i can pass

Chemistry
1 answer:
slavikrds [6]3 years ago
5 0
I believe it’s active transport hope it helps:)
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Shifts in the rock layer locations cannot account for gaps in the rock record<br><br> true or false
vivado [14]

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Explanation:

Have a good day

I hope this helps if not sorry :(

Stay motivated

4 0
3 years ago
What volume of 12M HCI is needed to prepare 250<br> of 0.20M HCI?
Alchen [17]

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Explanation:

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6 0
2 years ago
The base-dissociation constant, kb, for pyridine, c5h5n, is 1.4x10-9 the acid-dissociation constant, ka, for the pyridinium ion,
sp2606 [1]
We are given the base dissociation constant, Kb, for Pyridine (C5H5N) which is 1.4x10^-9. The acid dissociation constant, Ka for the Pyridium ion or the conjugate acid of Pyridine is to be determined. We know from our chemistry classes that:

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where Kw is always equal to 1x10^-14

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1x10^-14 = 1.4x10^-9 * Ka
solve for Ka

Ka = 7.14x10^-6 

Therefore, the acid dissociation constant of Pyridinium ion is 7.14x10^-6.
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3 years ago
In a chemical reaction between copper metal and silver nitrate, 12.7 g of copper(II) and 64.5 g of silver nitrate react, and 38.
hodyreva [135]

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Explanation:

8 0
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coldgirl [10]

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hope it helps!

please mark as the brainliest!

7 0
3 years ago
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