3 years ago

There are two scenarios presented:

1 answer:

5 0

Scenario I has two objects with the same charge. Scenario II has one object with a positive charge and one object with a negative charge.

according to Coulomb's law. It is scientifically true that same charges repel each other while unlike charges attract each other. Benjamin Franklin confirmed it too

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How many moles of sulfur are in 53.7 grams of sulfur?

PolarNik [594]

NO.OF.MOLES= MASS/ATOMIC MASS
THE ATOMICITY OF SULPHUR IS 8 AND ITS MASS NUMBER IS 32.
SO, THE ATOMIC MASS IS 256
NO.OF.MOLES= 53.7/256
= 537/2560
= 0.2097

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2 years ago

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zhuklara [117]

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2 years ago

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The wave like behavior of moving particles cannot be observed due to the.........of the particles wavelengths?

Nat2105 [25]

Answer is: 4)Mass

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3 years ago

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Find the number of moles of argon in 364 grams of argon.

serg [7]

Answer:D. 9.1 mole Ar

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364 g Ar x 1 mole Ar / 40 g Ar

= 9.1 moles Ar

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3 years ago

Determine the mass in grams of 4.69 x 1021 atoms of barium. (The

Virty [35]

Answer:

1.07 g Ba

Explanation:

Hello there!

In this case, according to the definition of the Avogadro's number and the molar mass, it is possible to say that 6.022x10^{23} atoms of barium equal one mole, and at the same time, 1 mole equals 137.327 grams of this element; thus, it is possible to say that 6.022x10^{23} atoms of barium have a mass of 137.327 grams; therefore, it i possible for us to calculate the required mass in grams as shown below:

$4.69x10^{21}atoms*\frac{137.327gBa}{6.022x10^{23} atoms} \\\\=1.07gBa$

Best regards!

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2 years ago