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OlgaM077 [116]
3 years ago
6

If a substance undergoes electrolysis and a brown solid forms on one electrode and a gas on the other, from this we can conclude

the original substance must have been: a. An element b. A compound c. A mixture
Chemistry
1 answer:
andrew-mc [135]3 years ago
7 0

Answer:

b. a compound.

Explanation:

Electrolysis is described as a mechanism in which ionic compounds are decomposed into their elements by transmitting a direct electric current via the compound in a liquid state. At the cathode, the cations are reduced and anions at the anode are oxidized. There is an exchange between ions and atoms in the electrolysis process caused by the addition or removal between electrons from the external circuit. As per the question, the original substance is a compound because the electrolysis method is used to obtain pure elements from their respective compound.

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4 0
3 years ago
What is the de broglie wavelength of a 0.17-kg hockey puck moving at 37 m/s ?
Stolb23 [73]
Im taking lambda as x (wavelength)

m = 0.17 kg

v=37m/s

h=6.62*10^-34m²kg/s

x= h/mv


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5 0
3 years ago
Of the following lists of electron transport compounds, which one lists them in order from the one containing electrons with the
lutik1710 [3]

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FADH2 -- FMN of Complex I -- Fe-S of Complex II -- Q -- Fe-S of Complex III -- Cyt c -- Cyt a of Complex IV -- O2

Explanation:

7 0
3 years ago
In the reaction 2Na + CI2 --> 2NaCI the products are
nataly862011 [7]

Answer:

The products in this equation are CI2

Explanation:

The reasoning as to why the CI2 is considered the products is because it is on the right side of the plus sign, and on the left side is called reactants.

5 0
2 years ago
How many moles of NaCl (s) can be formed from 32 moles of Cl2 (g) reacting with an excess of Na (s)?
blagie [28]

Answer:

64 moles

Explanation:

Let us begin by writing a balanced equation for the reaction. This is illustrated below:

2Na + Cl2 —> 2NaCl

From the equation above,

1 mole of Cl produced 2 moles of NaCl.

Therefore, 32 moles of Cl will produce = 32 x 2 = 64 moles of NaCl.

Therefore, 64 moles of NaCl are produced

7 0
3 years ago
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