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Minchanka [31]
3 years ago
14

Please help fast what is this molecule called

Chemistry
1 answer:
trasher [3.6K]3 years ago
4 0

Answer:

Molecule, a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance. ... Several methods of representing a molecule's structure.

Explanation:

maybe this will help you

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A piece of metal with a mass of 147g and a volume of 21ml. Calculate the density of the metal.
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Answer:

density of a piece of metal = 7 gr/ml

Explanation:

See the file please

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NaHCO3 is an example of -
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Answer:

sodium bicarbonate

Explanation:

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2. A cell with few energy needs would most
sattari [20]

A Cell with few energy needs would most likely contain a small number of Mitochondria.

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5 0
1 year ago
An unknown gaseous substance has a density of 1.06 g/L at 31 °C and 371 torr. If the substance has the following percent composi
Anarel [89]

Answer:

C) C4H6 - Right answer

Explanation:

Let's combine the Ideal Gases Law with density to get the molecular formula for the unknown gas.

Density = mass / volume

1.06 g /L means that 1.06 grams of compound occupy 1 liter of volume.

P . V = n . R . T

Pressure in Torr must be converted to atm

760 Torr are 1 atm

371 Torr  are __ (371 .1)/760 = 0.488 atm

0.488 atm . 1L = 1.06g/MM . 0.082 . 304K

(0.488 atm . 1L) / 0.082 . 304K = 1.06g/ MM

Mass / Molar mass = Moles → That's why the 1.06 g / MM

0.0195 mol = 1.06g / MM

1.06g/0.0195 mol = MM →  54.3 g/m

Now, let's use the composition

100 g of compound have 88.8 g of C

54.3 g of compound have ___ (54.3  . 88.8) /100 = 48 g of C

100 g of compound have 11.2 g of H

54.3 g of compound have __ (54.3  .  11.2)/100 = 6 g of H

48 g of C are included un 4 atoms

6 g of H are included in 6 atoms

4 0
3 years ago
What does 2Cl mean?​
Nina [5.8K]

Answer: I think that you have to find it in your lesson

Explanation:

4 0
2 years ago
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