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LenaWriter [7]
4 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]4 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]4 years ago
5 0
Molecular shape is tetrahedron
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disa [49]

Answer:

It's false

Explanation:

Mixtures are always combinations of the same compounds that are at different states.

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3 years ago
At constant temperature, if a gas occupies 312 mL at a pressure of 1.60 atm, what pressure is necessary for this gas to occupy a
inn [45]

Answer:

P₂ = 1.0 atm

Explanation:

Boyles Law problem => P ∝ 1/V at constant temperature (T).

Empirical equation

P ∝ 1/V => P = k(1/V) => k = P·V => for comparing two different case conditions, k₁ = k₂ => P₁V₁ = P₂V₂

Given

P₁ = 1.6 atm

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5 0
3 years ago
What is the total number of joules of heat needed to change 300 g of water to
Mandarinka [93]

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6.78 × 10⁵ J

Explanation:

Step 1: Given and required data

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Step 2: Calculate the heat (Q) required to vaporize 300 grams of water

We will use the following expression.

Q = ΔH°vap × m

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6.78 × 10⁵ Joule will be required to convert 300 g of water to steam at 100 °C.

3 0
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What is the mathematical equation used when solving calorimetry problems? What does each variable in the equation represent?
liubo4ka [24]

Answer : The mathematical equation used when solving calorimetry problems is:

q=m\times c\times \Delta T}

Explanation :

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Formula used :

q=m\times c\times \Delta T}

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Which layer of the earth is the coolest in temperature?
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