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umka21 [38]
3 years ago
5

Please help me with this I’ll give you extra credit it’s due in 10 minutes thank youuu!!! :))

Chemistry
1 answer:
polet [3.4K]3 years ago
3 0

Answer:

Okay ask away. . . You haven't asked anything that we would be able to answer

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What is depletion??<br><br>good morning have A crazy day ​
Sever21 [200]

Answer:

Depletion is the movement of the cost of natural resources from a company's balance sheet to its income statements. The objective is to match on the income statement the cost of the natural resources that were sold with the revenues of the natural resources that were sold. 

Explanation:

well have crazy day too, take care...bye :)

3 0
3 years ago
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What is the empirical formula of a compound containing 90 grams carbon, 11 grams hydrogen, and 35 grams nitrogen? A. C3H4N B. C2
Ierofanga [76]

Answer:

A. C₃H₄N

Explanation:

  • Firstly, we need to calculate the no. of moles of C, H, and N using the relation:

<em>no. of moles = mass/molar mass.</em>

<em></em>

∴ no. of moles of C = mass/molar mass = (90.0 g)/(12.0 g/mol) = 7.5 mol.

∴ no. of moles of H = mass/molar mass = (11.0 g)/(1.0 g/mol) = 11.0 mol.

∴ no. of moles of N = mass/molar mass = (35.0 g)/(14.0 g/mol) = 2.5 mol.

  • We should get the mole ratio of each atom by dividing by the lowest no. of moles (2.5 mol of N).

∴ the mole ratio of C: H: N = (7.5 mol/2.5 mol): (11.0 mol/2.5 mol): (2.5 mol/2.5 mol) = (3: 4.4: 1) ≅ (3: 4: 1).

  • So, the empirical formula is: A. C₃H₄N.
3 0
4 years ago
A material has a volume of 63.0 cm3 and a mass of 28 grams.  What is the density of the material in g/cm3 to the correct number
dimaraw [331]

Answer:

0.4444 g/cm³ ≅ 0.44 g/cm³ (2 significant figures).

Explanation:

  • Knowing that:

<em>d = m/V,</em>

where, d is the density of the material (g/cm³).

m is the mass of the material (m = 28 g).

V is the volume of the material (V = 63.0 cm³).

<em>∴ d = m/V </em>= (28 g)/(63.0 cm³) = <em>0.4444 g/cm³ ≅ 0.44 g/cm³ (2 significant figures).</em>

7 0
3 years ago
The amount of energy that is transferred when one mole of a compound is formed from its component elements in their standard sta
amm1812
................................
5 0
3 years ago
QUICKKK
Rus_ich [418]

Answer:

need more like a image or somthing but it might be c

4 0
2 years ago
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