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Vladimir [108]
2 years ago
10

Is a compound a mixture

Chemistry
2 answers:
scoray [572]2 years ago
6 0

yes because your mixing different things together .<3

Thepotemich [5.8K]2 years ago
4 0
No, a compound is two elements that have been chemically combined to form something different. A mixture is two things that have been mixed together without creating a chemical change
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Which method would you use to separate rice grains, which have accidentally been mixed with flour
ale4655 [162]

Answer:

I would sieve them because the flour will go through but not the rice

Explanation:

6 0
2 years ago
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Benzene is a starting material in the synthesis of nylon fibers and polystyrene (styrofoam). Its specific heat capacity is 1.74
Leona [35]

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

5 0
2 years ago
i need help with these. its balancing. the blank spaces are where u put the numbers. and the stuff on the sidd is how u show wor
zlopas [31]
7. 1,2,2,2
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7 0
2 years ago
Write the reaction of reduction of iron oxide (III).​
olga nikolaevna [1]

Answer: I don't know if this helps you or not, but this is from study.com:

I'm so sorry if it doesn't:

Explanation: Iron(III) oxide reacts with carbon monoxide according to the balanced equation:

Fe₂O₃ + 3CO ➡️ 2Fe + 3CO₂

A reaction mixture initially contains 23.00g Fe₂O₃ and 15.40g CO.

8 0
2 years ago
Provide an orbital energy level diagram for the geound state of a nitrogen atom.
Alenkasestr [34]

Answer:

A

Explanation:

Nitrogen is an atom made up of 7 electrons.

To draw the orbital energy level diagram, let us write the orbital notation of the atom;

  7 electrons of Nitrogen:

        1s² 2s² 2p³

So,

 The orbital notation diagram is :

            1s²         2s²          2p³

            ↑↓          ↑↓          ↑↑↑

6 0
3 years ago
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