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LenaWriter [7]
3 years ago
14

What is the molecular shape of silicon tetrabromide? A. linear. . B. pyramidal. . C. tetrahedron. . D. bent triatomic

Chemistry
2 answers:
Naddik [55]3 years ago
6 0

Answer:

C. tetrahedron

Explanation:

Silicon tetrabromide (SiBr₄)

Valence electrons of silicon = 4

Valence electrons of bromine = 7  

The total number of the valence electrons  = 4 + 4(7) = 32

The Lewis structure is drawn in such a way that the octet of each atom and duet for the hydrogen in the molecule is complete. So,  the lewis structure is shown in the image below.

Around the central metal atom:-

Number of bond pairs = 4

Number of lone pairs = 0

The formula is AB_4.

<u>According to VSEPR theory, silicon tetrabromide has tetrahedron shape to minimize the repulsions. </u>

anygoal [31]3 years ago
5 0
Molecular shape is tetrahedron
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A solid, pure substance containing just carbon and hydrogen is found to contain 35.8g of carbon and 3.72 g of hydrogen. how many
Igoryamba

Answer:

            4.36 g of Carbon

Solution:

Step 1: Calculate the %age of Carbon in given Solid as;

                        Mass of Carbon  =  35.8 g

                        Mass of Hydrogen  =  3.72

                        Total Mass  =  35.8 g + 3.72  =  39.52 g

                        %age of Carbon  =  (35.8 g ÷ 39.52 g) × 100

                        %age of carbon  =  90.58 %

Step 2: Calculate grams of Carbon in 4.82 g of given solid as;

                        Mass of Carbon  =  4.82 g × (90.58 ÷ 100)

                        Mass of Carbon  =  4.36 g

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3 years ago
¿Qué hecho indujo a Heisenberg a establecer el principio de incertidumbre?
yaroslaw [1]

Answer:

Here's what I find  

Explanation:

Heisenberg observed that if we want to locate a moving electron, we must bounce photons off it.

However, this makes it recoil. By the time the photon returns to our eye, the electron will no longer be in the same place.

He concluded that there is a limit to the precision with which we can simultaneously measure the position and speed (momentum) of a particle.

The more precisely we know the electron's speed, the less precisely we know its position and vice versa.

The uncertainty in the product of the two values cannot be less than a fixed small number.

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What would happen to the pressure if the volume were reduced to 0.5 l and the temperature increased to 260 ∘c?
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What is an electrolyte in an electrochemical cell?
Svet_ta [14]

Answer:

An electrolytic cell uses electrical energy to drive a non-spontaneous redox reaction. An electrolytic cell is a kind of electrochemical cell. ... The electrolyte is usually a solution of water or other solvents in which ions are dissolved. Molten salts such as sodium chloride are also electrolytes.

Explanation:

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