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Zolol [24]
3 years ago
8

Elements are solid liquid and gas substance that can be found on earth which statements best describes an element

Chemistry
1 answer:
Mariulka [41]3 years ago
6 0

Answer:

i guess

Explanation:

we will never know

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Can someone help me balance these chemical equations?
topjm [15]

Explanation:

(1) CuF2+Mg-------->MgF2+Cu

(2) 2Na+2H2O --------> 2NaOH+H2

(3) 2KBr+Cl2-------->2KCl+Br2

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What stops gravity from pulling water to the center of the earth
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Magnetism, or more specifically electromagnetic repulsion

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How does a volcanic eruption affect the Earth's atmosphere? A) Eruptions shoot out ash and poisonous gases into the air. B) The
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3 years ago
What mass of cu(s)cu(s) is electroplated by running 14. 5 aa of current through a cu2 (aq)cu2 (aq) solution for 4. 00 hh?
galina1969 [7]

The mass of Copper electroplated is 68.76 g

<h3>What is electroplating?</h3>

The process of plating a metal onto another is known as electroplating.

It is often used to prevent corrosion of metal or for the decorative purposes

In this process, electric current is passed through an aqueous solution containing dissolved cations.

The dissolved cations are reduced developing a thin metal coating on the electrode.

At cathode,

Cu^{2+}(aq) + 2e^-\rightarrow      Cu(s)

Current, I = 14.5 A

Time, t = 4 hrs = 4×60×60 = 14400 sec

Charge, q = It = 14.5×14400= 208800 C

Copper metal deposited by 2×96487 C = 63.55 g

Copper metal deposited by 208800 C = \frac{63.55 \times208800}{2\times96487}

                                                         = 68.76g

Hence, The mass of Copper electroplated is 68.76 g

Learn more about electroplating:

brainly.com/question/22104403

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Complete the sentence by using the drop-down menus
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1st one: crack

2nd: carefully

Explanation:

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3 years ago
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