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ivolga24 [154]
3 years ago
10

3 Cu + 8HNO3 → 3 Cu(NO3)2 + 2 NO + 4 H2O

Chemistry
1 answer:
labwork [276]3 years ago
3 0

Answer:

45673

Explanation:

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Which statement is true about the gravitational force? A. It
Zanzabum

Answer:

"Option B It acts  on all objects all of the time.

Explanation:

"Gravitational force" is a kind of force that  will attract any object with a mass. It is a  "natural phenomenon" where all the things, including in planets in-universe, of mass or energy, are brought towards each other.  

Like the earth’s gravity helps in giving weight to objects and the ocean tides are caused because of the moon’s gravity. The example of gravity force is the force with which sun holds together the gases in it.

6 0
3 years ago
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Lithium has two naturally occurring isotopes, 6Li and 7Li . The atomic weight of lithium is 6.941. Which of the following statem
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Answer: The abundance of Li-7 isotope is higher as compared to Li-6.

Explanation:

Average atomic mass is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.

Formula used to calculate average atomic mass follows:

\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i

We are given:

Two isotopes of lithium :

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As, the average atomic mass of lithium is closer to the mass of isotope Li-7. This means that the relative abundance of Li-7 is higher as compared to Li-6.

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3 0
4 years ago
Someone please help me
svetlana [45]

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3 years ago
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Answer:

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Explanation:

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Explain whether smoke filling up a room is diffusion or not.
sdas [7]
<em>yes it is diffusion ..
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 diffusion is the movement of particles from high concentration to low concentration .. 
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4 years ago
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