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Sav [38]
3 years ago
9

What piece of apparatus is the ink mixture put in

Chemistry
1 answer:
erik [133]3 years ago
3 0

Answer:

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True or false? an element consists of only single atoms of that element. <br> a. True <br> b. False
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From what i read, the answer should be  b--false
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3 years ago
Approximately how many particles are in 2 moles?
schepotkina [342]

Answer:

1.2\times10^2^4 particles in 2 moles.

Explanation:

The number of particles that are contained in one mole, the international unit of amount of substance: by definition, exactly 6.022×10²³, and it is dimensionless. It is named after the scientist Amedeo Avogadro.

It is also known as Avogadro's constant.

∴ Number of particles in one mole = 6.022\times10^2^3

∴ Number of particles in 2 mole = 2 times Number of particles in one mole

∴ Number of particles in 2 mole=2\times6.022\times10^2^3=12.044\times10^2^3\approx1.2\times10^2^4

Hence there are 1.2\times10^2^4 particles in 2 moles.

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Why is hydrogen a light gas and iron is a heavy solid
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<span>Heavier atoms make denser materials</span>
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Pre-lab questions 1. a concentration gradient affects the direction that solutes diffuse. describe how molecules move with respe
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Just like how heat moves from a region of higher temperature to a region of lower temperature, molecules also tend to move from a region of higher concentration to a region of lower concentration. This is called natural diffusion and is naturally happening to reach stability.

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Explain why solar energy is considered an inexhaustible source of energy
scoray [572]

Answer:

Solar power

Or in some cases, from heat from the sun. ... Solar energy is a renewable free source of energy that is sustainable and totally inexhaustible, unlike fossil fuels that are finite. It is also a non-polluting source of energy and it does not emit any greenhouse gases when producing electricity.

Explanation:

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