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Levart [38]
3 years ago
13

What happens at the cathode?

Chemistry
1 answer:
Citrus2011 [14]3 years ago
4 0

Answer:

Metals ions are oxidized because oxidation always occurs at cathode

Explanation:

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If a 100.-g sample of platinum metal has a volume of 4.67 ml, what is the density of platinum in g/cm3?
Mariulka [41]
The density of any substance does not change at a certain temperature and pressure. Even though mass and volume are intensive properties (depends on the amount of substance), density is not. It is merely a fixed ratio of mass to volume. Therefore, the solution is

Density = Mass/Volume
For your information, quantitatively, cm³ is equivalent to mL.
Density = 100 g/4.67 cm³ = 21.41 g/cm³
7 0
4 years ago
Draw the major 1,2- and 1,4-addition products that form as a result of the following reaction between one equivalent each of 2,4
lapo4ka [179]

The major 1,2- and 1,4-addition products are 4-Bromo-2-hexene and 2-Bromo-2-hexene.

What is Markovnikov Rule ?

Markovnikov rule explains that in addition reaction of alkene react with a hydrogen halide. The hydrogen atom is attached to the carbon atom that is already bonded to the greatest number of hydrogen.

<h3>What is Addition Reaction ?</h3>

An addition reaction is an organic reaction occur when two or more molecules combine to form a larger molecule without the loss of any atoms present in reactant.

Thus from the above conclusion we can say that The major 1,2- and 1,4-addition products are 4-Bromo-2-hexene and 2-Bromo-2-hexene.

Learn more about the Markovnikov Rule here: brainly.com/question/21496002

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6 0
2 years ago
Which of these correctly lists the order of the engineering process?
Likurg_2 [28]

Answer:

B

Explanation:

produce a product improve it identify a problem make a solution

7 0
2 years ago
Calculate the vapor pressure at 25° C of a
Leokris [45]

Answer: 35.4 degrees

Explanation: because it cold

7 0
4 years ago
Benzene is a starting material in the synthesis of nylon fibers and polystyrene (styrofoam). Its specific heat capacity is 1.74
katovenus [111]

Answer:

D

Explanation:

The amount of energy released or absorbed is equal the product of the mass, the specific heat capacity and the temperature change. The temperature change being the difference between the final and initial temperature.

Q = mc∆T

Q = heat energy (Joules, J) m = mass of a substance (kg) c = specific heat (units J/g∙K)

∆ is a symbol meaning "the change in" ∆T = change in temperature (Kelvins, K)

From the data provided in the question, we can deduce that:

Q = 16.7KJ = 16,700J

m = 225g

c = 1.74J/g.k

For the temperature, let the final temperature be f. This means our ∆T = f - 20

16,700 = 225 * 1.74 * (f - 20)

16700 = 391.5 (f - 20)

f - 20 = 16700/391.5

f - 20 = 42.7

f = 20 + 42.7 = 62.7

Hence the final temperature is 62.7 degrees Celsius

6 0
3 years ago
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