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Chemistry

1 answer:

ella [17]2 years ago

6 0

Answer:

continental drift: magma pushing two plates apart and concept of Pangaea

seafloor spreading: oceanic ridges and oceanic plates sliding under continental crust

Explanation: it’s kind self explanatory

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If the natural abundance of Ag-107 is 51.84% what is the abundance of Ag-109?

ASHA 777 [7]

Answer:

Explanation:

48.16%

Well, both abundances have to total 100% so is Ag-107 is 51.84%, then Ag-109 must be 100 – 51.84 = 48.16%.

Hope This Helps :)

4 0

3 years ago

Please I need helppppp

lord [1]

Answer:

$FeCl_{2} +H_{2} S->FeS + 2HCl$

Explanation:

I am assuming that we have to balance this equation. On the left side, we have one Fe, 2 H, 2 Cl, and 1 S. On the right side, we have 1 Fe, 1 H, 1 Cl, and 1 S. Adding a 2 as a coefficient in front of the HCl on the right side will make 2 H and 2 Cl instead, balancing the overall equation.

3 0

2 years ago

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An AM station broadcasts at 1290 kHz. <br> Calculate the wavelength of this radio frequency.

Dahasolnce [82]

Answer:

$Wavelength=232.56\ m$