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stealth61 [152]
3 years ago
10

When the particles of two objects have the same average kinetic energy, what do we know about those objects?

Chemistry
1 answer:
Dmitriy789 [7]3 years ago
3 0
That they both will be the same average kinetic energy
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Which of the following CANNOT be determined by looking at the spectra of a star? *
Rzqust [24]

Answer:

A:temperature

Explanation:

The temperature cannot be determined by looking at the spectra of the star due to lack of the equipment for its measurement. <em>On the other-hand, the remaining statements like the distance from earth, movement towards or away from earth can be determined.</em>

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The melting point of gallium metal is 29.76⁰C. If a piece of gallium is sliced into three parts, the melting point of each part
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How many sodium ions are in 4543.3 g of NaCl?
Stella [2.4K]

Answer:

4.68x10²⁵ ions of Na⁺

Explanation:

First of all, we dissociate the salt:

NaCl(aq) → Na⁺(aq) + Cl⁻(aq)

An aqueous solution of NaCl dissociates in chlorides anions and sodium cations. Ratio is 1:1, per 1 mol of NaCl, we have 1 mol of Na⁺

We determine the moles of salt: 4543.3 g . 1mol / 58.45 g = 77.7 moles

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We count the ions:

1 mol fo Na⁺ has 6.02x10²³ ions

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3 0
3 years ago
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Answer:

(2) Organelles must work together and their

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Answer: 6

Explanation:

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