What is another name for this equipment and what does it do to reduce the impact of coal use? (Site 1)

The lowest energy level of sodium contains ______

Lubov Fominskaja [6]

Answer:

8 electrons
(I believe I may be wrong)

3 0

3 years ago

What are the three major kinds<br> of rocks?

DedPeter [7]

Sedimentary, igneous and metamorphic

3 0

3 years ago

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Hydrogen sulfide decomposes according to the following reaction, for which Kc = 9.30 10-8 at 700°C. 2 H2S(g) 2 H2(g) + S2(g) If

Vikentia [17]

Answer:

The equilibrium concentration of hydrogen gas is 0.0010 M.

Explanation:

The equilibrium constant of the reaction = $K_c=9.30\times 10^{-8$ }

Moles of hydrogen sulfide = 0.31 mol

Volume of the container = 4.1 L

$[concentration]=\frac{moles}{volume (L)}$

$[H_2S]=\frac{0.31 mol}{4.1 L}=0.076 M$

$2H_2S(g)\rightleftharpoons 2H_2(g)+S_2(g)$

Initially

0.076 M

At equilibrium

(0.076-2x) 2x x

The expression of an equilibrium constant :

$K_c=\frac{[H_2]^2[S_2]}{[H_2S]^2}$

$9.30\times 10^{-8}=\frac{(2x)^2\times x}{(0.076-x)^2}$

Solving for x:

x = 0.00051

The equilibrium concentration of hydrogen gas:

$[H_2]=2x=2\times 0.00051 M=0.0010 M$

4 0

4 years ago

Determine the electron-group arrangement, molecular shape, and ideal bond angle(s) for each of the following:

Sunny_sXe [5.5K]

The electron group arrangement of CH₂Cl₂ is penta-atomic. The molecular shape is tetrahedral, and the bond angle is 109.5°.

<h3>What is the bond angle?</h3>

The bond angle is the angle between the atoms of the compound. The bond angle is defined in degree. The bond length is also there. It is the distance between the nuclei of the two atoms.

The bond angle of CH₂Cl₂ is 109.5°. According to the VSEPR theory, as the structure will be tetrahedral.

Thus, the penta-atomic configuration of CH2Cl2's electrons. Tetrahedral is the molecular shape, the bond angle is 109.5°.

To learn more about bond angle, refer to the link:

brainly.com/question/14089750

#SPJ4

7 0

2 years ago

Which example is a container holding a heterogeneous mixture? * 1 point Bowl of clear chicken broth. Balloon filled with He gas.

Margarita [4]

Answer:

Bowl of clear chicken broth

Explanation:

A bowl of clear chicken broth is a heterogenous mixture.

A heterogenous mixture is one in which the constituents exists in at least two different phases.
A chicken broth is a heterogenous mixture which exists in the liquid - solid state.
The broth is made up of simmered meat, vegetables and other recipes together.

Such mixtures can be:

Gas - liquids mixtures
Liquid - solid mixtures
Gas - solid mixtures

A broth is an extract from cooking chicken. Some vegetables and extract are mixed together in a nutritious blend.

6 0

3 years ago