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sveticcg [70]
3 years ago
9

S2− Draw the particle by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons and nonbo

nding electrons. Show the charge of the atom.
Chemistry
1 answer:
Len [333]3 years ago
4 0

Answer:

See explanation

Explanation:

The S^2- ion is formed when sulphur atom accepts two electrons. Sulphur normally has six electrons in its outermost shell, it can however accept two more electrons to complete its octet and form the sulphide  (S^2-) ion.

The Lewis structure of the sulphide ion is shown in the image attached to this answer.

Image credit: socratic

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X-rays have a wavelength small enough to image individual atoms, but are challenging to detect because of their typical frequenc
Cerrena [4.2K]

Explanation:

Given: \lambda = 8.38\:\text{nm} = 8.38×10^{-9}\:\text{m}

Its frequency \nu is defined as

\nu = \dfrac{c}{\lambda} = \dfrac{3×10^8\:\text{m/s}}{8.38×10^{-9}\:\text{m}}

\:\:\:\:= 3.58×10^{16}\:\text{Hz}

7 0
3 years ago
Calculate the molarity of a MgSO4, solution
Gala2k [10]

Answer:

0.058M is molarity of the solution

Explanation:

Molarity is defined as the ratio between the moles of solute (In this case, MgSO₄) and the liters of solution.

In the problem:

<em>Moles MgSO₄: 0.32 moles</em>

<em>Liters solution: 5.5L</em>

<em />

Molarity is:

0.32 moles / 5.5L =

0.058M is molarity of the solution

6 0
3 years ago
Question 2(Multiple Choice Worth 3 points)
viktelen [127]

Answer:

2.0 x 10⁻³ M/s.

Explanation:

  • The rate of the reaction is the change of the concentration of the reactants or the products with time.

<em>The rate of the reaction = - Δ[reactants]/Δt = - [(0.6 M - 1.8 M)]/(580 s - 0 s) = 2.069 x 10⁻³ M/s.</em>

5 0
3 years ago
A gas mixture with a total pressure of 770 mmHg contains each of the following gases at the indicated partial pressures: 128 mmH
Alina [70]

Answer:

227 mmHg

Explanation:

Ptotal= PCO2 +PAr+PO2+PHe

PHe= Ptotal-PCO2 -PAr-PO2

PHe= (770 mmHg)-(128 mmHg)-(232 mmHg)-(183 mmHg)

PHe=227 mmHg

4 0
4 years ago
Sequence the following types of waves from lowest frequency to highest frequency: ultraviolet rays, infrared rays, gamma rays, r
7nadin3 [17]
Light Spectrum:

Gamma Rays; X- Rays; Ultraviolet Rays; Infrared; Micro; Radio

I'm guessing green means the color wave 
So it should be: Radio-Infrared- Green - UV - Gamma 
This is because frequency decreases when going from left to right on the Light Spectrum!
3 0
3 years ago
Read 2 more answers
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