3 years ago

What is the element present for copper

1 answer:

amm18123 years ago

8 0

Copper is an brown-orange color which it's atomic number is 29. With high thermal and electricity conductivity with it's smooth surface.

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How much work (in J) is involved in a chemical reaction if the volume decreases from 5.00 to 1.48 L against a constant pressure

Dahasolnce [82]

Given:
ΔV = 5 - 1.48 L = 3.52 L = 0.00352 m³, th chane in volume
p = 0.818 atm = 0.819*101325 Pa = 82985.2 Pa

By definition, the work done is
$W = \int pdV = (82985.2 \, \frac{N}{m^{2}} )*(0.00352 \, m^{3}) = 292.1 \, J$

Answer: 292.1 J

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3 years ago

As defined by Aristotle, which one of the following is an element?

zloy xaker [14]

Answer:

Explanation:

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For example, the density of the water in a pool is the same density as the water in a small cup.

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3 years ago

After you have analyzed the data from an experiment, what do you do? O A. Draw a conclusion a O B. Control the variables C. Make

gizmo_the_mogwai [7]

Answer:

A. Draw a conclusion

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2 years ago

Place the gases listed below in order from the slowest moving to fastest moving when the gases are at 25 C. O2, N2, F2, Cl2

Olin [163]

The way I solved this is through looking at the gases' weights on the periodic table. The heavier the gas is, the slower it will move (correct me if I'm wrong).

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