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Phantasy [73]
3 years ago
12

(First to answer gets some good) Order the following components of the universe from largest to smallest: Moon, planet,universe,

star,galaxy,nebula,comet!
Chemistry
1 answer:
cluponka [151]3 years ago
7 0

Answer:

Universe, galaxy, solar system, star, planet, moon and asteroid.

Explanation:

You're welcome!

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In Millikan’s experiment, the oil droplets acquire one or more negative charges by combining with the negative charges that are
zimovet [89]

Answer:

-6.4x10⁻¹⁹ C

Explanation:

The elementary charge of one electron is -1.60x10⁻¹⁹C, so each electron has its charge, and a sample with more than one electrons will have a multiple of its charge, which is proportional to the number of electrons. So, if the oil droplet had 4 electrons, thus the charge will be four times the elementary charge:

4*(-1.60x10⁻¹⁹) C = -6.4x10⁻¹⁹ C

4 0
3 years ago
Balance this chemical equation
irina [24]

Answer:

3

Explanation:

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that means there need to be the same number on the right side

in the CaF2 molecules we already have 2 fluorine atoms so by multiplying with 3 we get 3 Ca and 6F

3 0
3 years ago
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vazorg [7]

Answer:

structure

Explanation:

7 0
3 years ago
You need a 35% alcohol solution. on hand, you have a 405 ml of a 30% alcohol mixture. you also have 80% alcohol mixture. how muc
Bumek [7]

You must add 45 mL of the 80 % alcohol to the 30 % alcohol to get a 35 % solution.

You can use a modified dilution formula to calculate the volume of 80 % alcohol

V1×C1 + V2×C2 = V3×C3

Let the volume of 80 % mixture 1 = <em>x</em> mL. Then the volume of the final 35 % mixture 3 = (405 + <em>x</em> ) mL

(<em>x</em> mL×80 % alc) + (405 mL×30 % alc) = (405 + <em>x</em>)mL × 35 % alc

80x + 12 150 = 14 175 + 35 x

45x = 2025

x = 2025/45 = 45

4 0
3 years ago
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