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Lapatulllka [165]
2 years ago
10

2. Which statement about bonding is correct? (1 point)

Chemistry
2 answers:
viva [34]2 years ago
5 0

2. O Breaking bonds releases energy and is endothermic.

3.  O pull electrons away from other elements

<h3>Endothermic v/s Exothermic:</h3>
  1. An endothermic reaction occurs when <u>energy is absorbed </u>from the surroundings in the form of heat. While an exothermic reaction is one in which <u>energy is released</u> from the system into the surroundings.
  2. In an endothermic reaction, the reaction mixture absorbs heat from the surroundings. Therefore, <u>the products will have a higher energy than the reactants</u> and <em>ΔH will be positive</em>. In an exothermic reaction, the reaction mixture <u>releases heat to the surroundings</u>.

Fluorine is a member of Halogen family having one electron less to acquire stable noble gas configuration. Thus in order to attain one more electron it will gain one electron so as to be stably complete.

Thus the correct options are given above.

Learn more:

brainly.com/question/14728759

grandymaker [24]2 years ago
3 0

Answer:

Forming bonds releases energy and is exothermic.

pull electrons away from other elements

the more electronegative an element is the more greedy it is for electrons, florine has a score of 3.98 which is the highest on the table. Meaning that it will always take the electrons from the other element

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Answer:

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Explanation:

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<em>2AlCl₃ + 3Br₂ → 2AlBr₃ + 3Cl₂,</em>

2.0 mole of AlCl₃ reacts with 3.0 mole of Br₂ to produce 2.0 mole of AlBr₃ and 3.0 mole of Cl₂.

  • Firstly, we need to calculate the no. of moles of 36.2 grams of AlCl₃:

<em>n = mass/molar mass</em> = (36.2 g)/(133.34 g/mol) = <em>0.2715 mol.</em>

<u><em>Using cross multiplication:</em></u>

2.0 mole of AlCl₃ reacts with → 3.0 mole of Br₂, from the stichiometry.

0.2715 mol of AlCl₃ reacts with → ??? mole of Br₂.

∴ The no. of moles of Br₂ reacts completely with 0.2715 mol (36.2 g) of AlCl₃  = (0.2715 mol)(3.0 mole)/(2.0 mole) = 0.4072 mol.

<em>∴ The mass of Br₂ reacts completely with 0.2715 mol (36.2 g) of AlCl₃ = no. of moles of Br₂ x molar mass</em> = (0.4072 mol)(159.808 g/mol ) = <em>65.08 g.</em>

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