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mestny [16]
3 years ago
6

Consider the molecule SiCl4. The electronegativity values for Si and Cl are 1.8 and 3.0, respectively. Based on these values and

on consideration of molecular geometry, the Si-Cl bond is ________ and the molecule is ________.
polar; nonpolar
polar; polar
nonpolar; nonpolar
nonpolar; polar
none of the above
Chemistry
2 answers:
klio [65]3 years ago
8 0
I believe what the answer could be is Polar; polar!
soldier1979 [14.2K]3 years ago
4 0

Answer:

The answer to your question is polar; polar

Explanation:

First, we must consider the following information

                      Type of bond               Difference of electronegativity

                       Ionic                                   > 1.7

                       Polar covalent                  between 0 and 1.7

                       Nonpolar covalent           0

Then, we must determine the difference of electronegativity of this molecule

                        SiCl₄ = 3.0 - 1.8

                                 = 1.2

So, this molecule has a polar covalent bonding and the molecule is polar.

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A chemist adds 1.80L of a 1.1/molL aluminum chloride AlCl3 solution to a reaction flask. Calculate the millimoles of aluminum ch
amm1812

Answer:

2000 millimoles of AlCl₃

Explanation:

From the question given above, the following data were obtained:

Volume of solution = 1.8 L

Molarity of solution = 1.1 mol /L

Millmole of AlCl₃ =?

Next, we shall determine the number of mole of AlCl₃ in the solution.

This can be obtained as follow:

Volume of solution = 1.8 L

Molarity of AlCl₃ solution = 1.1 mol /L

Number of mole of AlCl₃ =?

Molarity = mole /Volume

1.1 = Number of mole of AlCl₃ / 1.8

Cross multiply

Number of mole of AlCl₃ = 1.1 × 1.8

Number of mole of AlCl₃ = 1.98 moles

Finally, we shall convert 1.98 moles to millimoles. This can be obtained as follow:

1 mole = 1000 millimoles

Therefore,

1.98 mole = 1.98 mole × 1000 millimoles / 1 mole

1.98 mole = 1980 millimoles

1.98 mole ≈ 2000 millimoles

Thus, the chemist added 2000 millimoles of AlCl₃

7 0
2 years ago
For each situation below, state whether water will move into the cell, move out of the cell, or stay the same.
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