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3 years ago

How mant atoms are in 3N2

Chemistry

2 answers:

geniusboy [140]3 years ago

8 0

Explanation:

you times 3 and 2 to get six.

Ainat [17]3 years ago

8 0

In 2 formula units of silver nitrate, there are 2 silver atoms, 2 nitrogen atoms, and 6 oxygen atoms. We can improve this answer by using the mole concept.

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The thin outer layer of Earth, called the crust, contains only 0.50 percent of Earth's total mass and yet is the source of almos

Rzqust [24]

Answer:

The mass of silicon in kilograms in Earth's crust is $7.2729\times 10^{21} kg$ .

Explanation:

Mass of Earth = $5.9\times 10^{21} tons$

(1 ton= 2000 lb)

(1 lb =453.6 g)

1 ton = 2000 × 453.6 g =907,200 g

Mass of Earth = $5.9\times 10^{21}\times 907,200 g=5.3524\times 10^{27} g$

Percentage of earth crust = 0.50%

Mass of earth crust = M

$0.50\%=\frac{M}{5.3524\times 10^{27}}\times 100$

$M=2.6762\times 10^{25} g$

Percentage of the silicon in Earth's crust = 27.2 %

Mass of silicon in in Earth's crust = m

$Si\%=\frac{m}{M}\times 100$

$27.2\%=\frac{m}{2.6762\times 10^{25} g}\times 100$

$m = 7.2792\times 10^{24} g=7.2729\times 10^{21} kg$

1000 g = 1 kg

The mass of silicon in kilograms in Earth's crust is $7.2729\times 10^{21} kg$ .

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3 years ago

In which volcanic eruption is pyroclastic materials released

juin [17]

There are many kinds of pyroclastic material ejected during a volcanic eruption. Ash is the most common pyroclastic rock material ejected during an eruption. Volcanic ash is so fine that it can be blown into the atmosphere and picked up by the jet stream where it can circle the Earth for several years.

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4 years ago

If a firework is light up is the kinetic energy increasing decreasing or the same

nlexa [21]

Answer:

The kinetic energy is increasing, and the potential energy is decreasing.

Explanation:

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2 years ago

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Kryger [21]

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Explanation:

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3 years ago

What is the atomic mass of 3NaCl

givi [52]

Answer:

35.453

Explanation:

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3 years ago