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adoni [48]
4 years ago
7

Given:

Chemistry
1 answer:
marusya05 [52]4 years ago
7 0

Answer:

92.6 g.

Explanation:

  • The balanced equation is:

CaC₂ + N₂ → CaCN₂ + C.

  • It is clear that 1.0 mole of CaC₂ reacts with 1.0 mole of N₂ to produce 1.0 mole of CaCN₂ and 1.0 mole of C.
  • We need to calculate the no. of moles of 265.0 g of CaCN₂ produced using the relation:

n = mass / molar mass = (265.0 g) / (80.102 g/mol) = 3.308 mol.

  • We should get the no. of moles of N₂ needed to produce 3.308 mol of CaCN₂.

∵ 1.0 mole of N₂ produces → 1.0 mole of CaCN₂.

<em>∴ 3.308 mole of N₂ produces → 3.308 mole of CaCN₂.</em>

  • Now, we can get the grams of N₂  consumed to produce 265.0 g of CaCN₂:

∴ The grams of N₂ = n x molar mass = (3.308 mole)(28.0 g/mol) = 92.63 g = 92.6 g.

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Hi! My answer would be D, USA.


Explanation:


We are provided with 5 pieces of an address. They are as followed.

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Imagine each of the five parts of Beck's address represents Earth, the Milky Way, the moon, the solar system, or the universe, based on their sizes. Which of the following parts of Beck's address would represent the solar system?



If we have to plug in Earth, the Milky Way, the moon, the solar system, and the universe, (all based on size,) we would first start with what "Apartment A" would be in this scenario. Apartment A is the smallest piece we have to work with, and so is the moon. This leads me to believe that the Moon should be plugged into Apartment A. Now, 12 Riverdale Lane is most likely going to be the Earth, since it is the second smallest one on our list. San Jose would turn into the Sun, California represents the Milky Way, and USA represents the solar system.


I sincerely hope I helped!


Have a wonderful day :)


~AmbitiousAndProud

3 0
3 years ago
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9. Calculate the approximate number of atoms in a bacterium. Assume the average mass of an atom in the bacterium is 10 times the
Natali5045456 [20]

The question is incomplete, the complete question is :

Calculate the approximate number of atoms in a bacterium. Assume the average mass of an atom in the bacterium is 10 times the mass of a hydrogen atom.(Hint the mass of hydrogen atom is on order of 10^{-27} kg and the mass of bacterium is on order of 10^{-15} kg

Answer:

The total numbers of atom in bacterium are 10^{12}.

Explanation:

Mass of hydrogen atom, m= 10^{-27} kg

Mass of bacterium , M= 10^{-15} kg

Mass of bacterium atom =m'

Given ; m' =10\times m

m'=10\times 10^{-27} kg=10^{-26} kg

let the number of atoms in bacterium be N

m'\times N=M

N=\frac{M}{m'}=\frac{10^{-15} kg}{10^{-27} kg}=10^{12}

The total numbers of atom in bacterium are 10^{12}.

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Answer:

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6 0
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solniwko [45]

Explanation:

Molar mass of Hg = 200.59g/mol.

Therefore Moles = Mass / Molar mass

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3 years ago
The columns in the periodic table are called groups. What do the elements in group 17 have in common?
natita [175]

Answer:

All of the elements in group 17 all have 7 valence electrons. This is one thing they all share in common.

Explanation:

7 0
3 years ago
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