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3 years ago

Chemical bonds are likely to form when

Chemistry

2 answers:

shusha [124]3 years ago

6 0

b. an atom’s outer energy level doesn't have the maximum number of electrons.

AleksAgata [21]3 years ago

6 0

Answer:

The correct answer is option b. an atom’s outer energy level doesn't have the maximum number of electrons.

Explanation:

Hello!

Let's solve this!

For a chemical bond to form, the elements must have the last level of energy that is not complete, to be able to complete it through chemical bonding. Thus, noble gases (whose last energy level is complete), do not form chemical bonds.

After analysis, we conclude that the correct answer is option b. an atom’s outer energy level doesn't have the maximum number of electrons.

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Which choice below would affect the rate of reaction in the opposite way from the other four?

bulgar [2K]

Adding a catalyst as this would speed up the reaction and the rest would slow it down

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3 years ago

Determine the maximum amount of Fe that was produced during the experiment. Explain how you determined this amount.

dsp73

Answer:

5 moles of Fe

Explanation:

The equation of the reaction is;

2 Al(s) + Fe 2O 3(s) --> 2Fe (s) + Al 2O 3 (s)

Now;

1 mole of Fe2O3 require 2 moles of Al

3 moles of Fe2O3 requires 3 × 2/1 = 6 moles of Al

Hence Al is the limiting reactant.

If 2 moles of Al yields 2 moles of Fe

5 moles of Al yields 5 × 2/2 = 5 moles of Fe

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3 years ago

Thermal conductors and insalators

bija089 [108]

Answer:

are both thermal?

Explanation:

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3 years ago

Rank the compounds in each set in order of increasing acid strength.

Viktor [21]

Answer:

See explanation

Explanation:

For this question, we have to remember the effect of an atom with high electronegativity as "Br". If the "Br" atom is closer to the carboxylic acid group (COOH) we will have an inductive effect. Due to the electronegativity of Br, the electrons of the C-H bond would be to the Br, then this bond would be weaker and the compound will be more acid (because is easier to produce the hydronium ion $H^+$ ).

With this in mind, for A in the last compound, we have 2 Br atoms near to the acid carboxylic group, so, we will have a high inductive effect, then the C-H would be weaker and we will have more acidity. Then we will have the compound with only 1 Br atom and finally, the last compound would be the one without Br atoms.

In B, the difference between the molecules is the position of the "Br" atom in the molecule. If the Br atom is closer to the acid group we will have a higher inductive effect and more acidity.

See figure 1

I hope it helps!

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