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3 years ago

6

_______ in the mountains melts into water.

1 answer:

Zigmanuir [339]3 years ago

8 0

Answer:

Ice

Explanation:

When ice melts it makes water

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1. When recommending solutions to decrease human impact, which location were you able to make the greatest positive impact? Plea

Contact [7]

Answer: hope it help

Explanation:

1. I assume that it is possible to create the most beneficial consequences in rural zones where agricultural production is concentrated in the region as solutions are placed in place to reduce the human effect on nature. That is because agriculture is a practice that has a huge effect so it is important to protect the climate and nature so that farming can continue.

2. The first suggestion I make to my group is that limited waste disposal should be used. This will encourage any recycled material to have no association with products that would stop recycling. When the love is recycled,

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4 years ago

What is the balanced form of the chemical equation shown below?<br> Cr(s) + Cl2(g) → CrCl3(s)

loris [4]

Answer:

${ \sf{2Cr _{(s)} + 3Cl _{2(g)} → 2CrCl _{3(g)} }}$

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3 years ago

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Which is an example of an automatic decision that doesn’t require a lot of thinking?

Tamiku [17]

Answer

to do homework or not

Explanation:

you can figure it out in one second

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2 years ago

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A. Gallium is produced by the electrolysis of a solution obtained by dissolving gallium oxide in concentrated NaOH(aq). Calculat

liraira [26]

Answer:

A)Mass of gallium plated out is 0.3440 grams

B) For 0.67 hours current of 5.79 A must to be applied to plate out 8.70 g of tin.

Explanation:

To calculate the total charge, we use the equation:

$C=I\times t$

where,

C = Charge

I = Current in time t (seconds)

To calculate the moles of electrons, we use the equation:

$\text{Moles of electrons}=\frac{C}{F}$

where,

F = Faraday's constant = 96500

A) The equation for the deposition of Ga(s) from Ga(III) solution follows:

$Ga^{3+}(aq.)+3e^-\rightarrow Ga(s)$

I = 0.790 A, t = 30.0 min = 1800 seconds

$C=I\times t$

$C=0.790 A\times 1800 s=1422 C$

Moles of electron transferred:

$=\frac{1422 C}{96500 F}=0.01474 mol$

Now, to calculate the moles of gallium, we use the equation:

$\text{Moles of Gallium}=\frac{\text{Moles of electrons}}{n}$

n = number of electrons transferred = 3

$\text{Moles of Gallium}=\frac{0.01474 mol}{3}=0.004913 mol$

Mass of 0.004913 moles of gallium = 0.004913 mol × 70 g/mol=0.3440 g

B) The equation for the deposition of Sn(s) from Sn(II) solution follows:

$Sn^{2+}(aq.)+2e^-\rightarrow Sn(s)$

Moles of tin = $\frac{8.70 g}{119 g/mol}=0.07311 mol$

n = number of electrons transferred = 2

$\text{Moles of tin}=\frac{\text{Moles of electrons}}{n}$

Moles of electron = $n\times \text{Moles of tin}$

$=2\times 0.07311 mol=0.14622 mol$

Charge transferred during time t :

$\text{Moles of electrons}=\frac{C}{F}$

$C=96500 F\times 0.14622 mol=14,110.23 C$

Current applied for t time = I = 5.79 A

$t=\frac{C}{I}=\frac{14,110.23 C}{5.79 A}=2,437 s=0.67 hrs$

For 0.67 hours current of 5.79 A must to be applied to plate out 8.70 g of tin.

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4 years ago

Acids react with what?

enot [183]

Answer:

Explanation:

The answer is A

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3 years ago

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