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Mice21 [21]
3 years ago
10

Time: Continents Over Time View Hint Place all the images on the timeline before you click the "Check” button. If you get stuck,

click on the "View Hint" button, and to start over, click on the "Reset Images" button. C o 225 million years ago 200 million years 135 million years 65 million years ago Today ago ago e Reset images Check Next Chapter: Plates & Boundaries Dunamic Earth Cita Man​
Chemistry
1 answer:
Burka [1]3 years ago
7 0

Answer:

Explanation:

45

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If a 0.320 mM solution of MnO41- has an absorbance of 0.480 at 525 nm in a 1.000 cm cell. What is the concentration of a MnO41-
larisa [96]

Answer:

Hence the concentration of a MnO41- solution that has absorbance of 0.490 in the same cell at that wavelength is 0.3266.

Explanation:

Now A = el, el=const

Then,

A2 / A1 = C2/ C1\\\\0.49/ 0.48 = C2 / 0.32\\\\C2 = 0.3266

3 0
3 years ago
What is the basic SI unit of time
aniked [119]

Answer:

The base unit for time is the second the other SI units are: metre for length, kilogram for mass, ampere for electric current, kelvin for temperature, candela for luminous intensity, and mole for the amount of substance!

Explanation:

I hope i helped =)

5 0
3 years ago
Write the net ionic equation:. . A solution of diamminesilver(I) chloride is treated with dilute nitric acid
zimovet [89]
<span> Ag(NH3)2Cl + 3HNO3 = AgNO3 +2NH4NO3 + HCl </span>
<span>or
 Ag(NH3)2Cl + HNO3 = Ag(NH3)2NO3 + HCl  this the complete balanced equation
now remove spectator ions to get net ionic equation
so 
</span>
<span> 2H+ + 2NO3- + [Ag(NH3)2]+ Cl- -> AgCl + 2NH4+ + 2NO3-  2NO3-  2H+  [Ag(NH3)2]+ + Cl- -> AgCl + 2NH4+
</span>hope it helps
5 0
3 years ago
Read 2 more answers
Seagrasses are flowering plants which grow in the photic zones of marine environments. Which factor would be a biotic limiting f
olga2289 [7]

Answer:

density of animal populations

Hope this helped

6 0
3 years ago
The data in the table are the result of a paramecium being placed in a hypertonic salt solution.
kolezko [41]
<span>the answer is
C. The bar for very low concentration is twice the height of the bar for medium concentration.

proof
</span>
<span>
</span>
<span>Medium--------------------15

</span>Very Low-------------------30 = 2<span /> x 15 (<span>Medium)
</span>



3 0
3 years ago
Read 2 more answers
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