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Arada [10]
3 years ago
15

The diagram shows the structure of an animal cell.

Chemistry
2 answers:
Vera_Pavlovna [14]3 years ago
8 0

Answer:

1

Explanation:

The cell membrane is the protective, semi-permeable membrane surrounding a cell and its contents.

kifflom [539]3 years ago
6 0

Answer:

I think 19 I think I don't know

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Write the electron configuration, the orbital notation, and the noble gas notation for the following elements:
V125BC [204]

Answer:

See explanation

Explanation:

The electron configuration of an atom means a detailed arrangement of the electrons in the atom in orbitals. It normally begins from the least energetic orbitals to the most energetic orbital.

For each of the elements, their electronic configuration in terms of the nearest noble gas is shown below;

P - [Ne] 3s2 3p3

I- [Kr] 4d10 5s2 5p5

Pb- [Xe] 4f14 5d10 6s2 6p2

F- [He] 2s2 2p5

7 0
3 years ago
If we take 2.2 grams of CO2, 6.02 X 1021 atoms of nitrogen and 0.03 gram atoms of sulphur , then the molar ratio of C, N, and O
Zanzabum

Answer: -

5 : 1 : 3

Explanation: -

Mass of CO₂ = 2.2 g

Molar mass of CO₂ = 44 g / mol

Number of moles of CO₂ = \frac{Mass}{Molar mass}

                                          = \frac{2.2}{44}

                                         = 0.05 mol

Number of atoms of nitrogen = 6.02 x 10²¹

Number of moles of nitrogen = \frac{Number of atoms of nitrogen}{Avogadro's number}

                                                 = \frac{6.02x1021}{6.02x1023}

                                                = 0.01 mol

0.03 gram atom of sulphur means 0.03 moles of sulphur.

Thus the mole ratio of CO₂ : N : S = 0.05 : 0.01 : 0.03

                                                         = 5 : 1 : 3

7 0
4 years ago
Read 2 more answers
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