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skelet666 [1.2K]
2 years ago
9

What is the smallest things that the solar system formed form?

Chemistry
1 answer:
MaRussiya [10]2 years ago
4 0

Explanation:

Asteroids nd comets are pretty small.

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Which diagram best represents light being reflected after striking the flat surface of a mirror
masya89 [10]
It 1
cause yea it is im doing it in class and the answers is 1

5 0
2 years ago
10. Well into the twentieth century, many scientists believed the ocean floor was A. rocky. B. round. C. flat. D. sandy.
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8 0
3 years ago
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How does vapor pressure affect intermolecular forces.
Grace [21]

Answer:

it is directly related to the intermolecular forces present between its molecules

3 0
2 years ago
How many atoms of ca are present in 8.6 mg? the atomic weight of ca is 40.08 amu?
Elina [12.6K]
One mole of any element is Avogadro's number, which is 6.02 * 10^23 atoms. One mole of Calcium is equal to its atomic weight in grams, 1 mole Ca = 40.08 x 1000 mg = 6.02 * 10^23 atoms. We have 8.6mg of Ca which means 8.6mg / 40,080mg = .00021457 of a mole of calcium. Now multiply that by Avogadro's number which gives number of atoms = 0.00021457 * 6.02 * 10^23 atoms. So the answer is 1.292 * 10^20 atoms of Ca.
8 0
3 years ago
A sample of an unknown gas effuses in 12.5 min. An equal volume of H2 in the same apparatus under the same conditions effuses in
forsale [732]

Answer:

53.4 gMol-1

Explanation:

Let the mass of the unknown gas be M

Let the molar mass of hydrogen gas be 2×1=2gMol-1

Time for diffusion of unknown gas = 12.5 min

Time for diffusion of hydrogen= 2.42 min

From Graham's law:

t1/t2=√M1/M2

Hence:

2.42/12.5= √2/M

Hence M= 53.4 gMol-1

5 0
3 years ago
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