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Juliette [100K]
3 years ago
5

Which statement best describes the polarity of CH3Cl? a) The molecule is always polar. b) The molecule is always nonpolar. c) De

pending on the arrangement of outer atoms, this molecule could be polar or nonpolar.
Chemistry
1 answer:
Solnce55 [7]3 years ago
7 0

Answer:

a) The molecule is always polar.

Explanation:

The molecule is always polar because of two reasons:

  • all the bonds are polar due to the difference in electronegativity between carbon and hydrogen & carbon and chlorine.

                                              AND IMPORTANTLY

  • The molecule is asymmetrical meaning that the dipoles cannot cancel each other out (like they do in methane or carbon dioxide for example) so the net effect is a polar molecule.
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Answer:

5000 cal X 4.184 J/cal =

Explanation:

20,920 jules

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Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are mixed. If a precipitate will
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The reaction between copper II chloride and sodium sulfide as well as lead II nitrate and potassium sulfate both produce precipitates.

The solubility of a substance in water is in accordance with the solubility rules.  It is possible that a solid product may be formed when two aqueous solutions are mixed together. That solid product is referred to as a precipitate.

Now, we will consider each reaction individually to decode whether or not a precipitate is possible.

  • In the first reaction, we have; CuCl2(aq) + Na2S(aq) ---->CuS(s) + 2NaCl(aq). A precipitate (CuS) is formed.
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  • In the third reaction, NH4Br(aq) + NaOH(aq) ----->NH3(g)  + NaBr(aq) + H2O(l), a precipitate is not formed here.

Learn more: brainly.com/question/11969651

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3 years ago
HELP PLSS!
Inessa05 [86]
. The empirical formula is the simplest whole number ratio.

The correct answer is 1. HCI
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3 years ago
For the elementary reaction NO3 + CO → NO2 + CO2 the molecularity of the reaction is ________, and the rate law is rate = ______
blagie [28]

Answer: For the elementary reaction NO_3+CO\rightarrow NO_2+CO_2 the molecularity of the reaction is 2, and the rate law is rate = k[NO_3]^1[CO]^1

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Order of the reaction is defined as the sum of the concentration of terms on which the rate of the reaction actually depends. It is the sum of the exponents of the molar concentration in the rate law expression.

Elementary reactions are defined as the reactions for which the order of the reaction is same as its molecularity and order with respect to each reactant is equal to its stoichiometric coefficient as represented in the balanced chemical reaction.

Molecularity of the reaction is defined as the number of atoms, ions or molecules that must colloid with one another simultaneously so as to result into a chemical reaction.  Thus it can never be fractional.

For elementary reaction NO_3+CO\rightarrow NO_2+CO_2 , molecularity is 2 and rate law is rate=k[NO_3]^1[CO]^1

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Proton = +1
neutron = 0
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