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Firdavs [7]
4 years ago
8

When balancing a redox reaction, you are balancing

Chemistry
1 answer:
julsineya [31]4 years ago
6 0
It might be letter D.
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What is one example of a scientific model? (this is science I don't know why can't find it on "pick a subject" so yeah)
Len [333]

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Explanation:

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I think that rock from the mantle is added to the edges of both plates at
soldi70 [24.7K]

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The Earth’s lithosphere, which includes the crust and upper mantle, is made up of a series of pieces, or tectonic plates, that move slowly over time.

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What marine province contains deep ocean trenches that form along convergent plate boundaries as a result of subduction?
ira [324]

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3 0
4 years ago
Solution A is yellow when alizarin yellow is added and blue when thymol
olga2289 [7]

Answer:

D. 6.3 x 10-5 mol/L NaOH

Explanation:

Alizarin yellow is an indicator that is yellow when pH < 10.1. In the same way, thymol blue is blue when pH > 9

That means the pH of the solution is between 9 - 10.1

Any acid as HCl could have a pH of these.

The solution of 3.2x10⁻⁴M NaOH has a pH of:

pOH = -log[OH-] = 3.49

pH = 14-pOH = 10.51. The pH of the solution is not 10.5

Now, the solution of 6.3x10⁻⁵M NaOH has a pH:

pOH = -log[OH-] = 4.2

pH = 14-pOH = 9.8

The pH of the solution could be 9.8. Right option is:

<h3>D. 6.3 x 10-5 mol/L NaOH</h3>
4 0
3 years ago
What is the molar mass of water in the hydrate ?
Free_Kalibri [48]
The mass of water equals the mass of the hydrate minus the mass of the anhydrite 4.9 G -2.9 G equals 2.0 G of water moles of water equals the mass of water/the molar mass of water 2.0 GH20/18 G/MOLHTO equals 0.11 Moles H20
6 0
3 years ago
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