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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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The pH of a 0.05 M solution of acetic acid is 3. What is the value of the equilibrium constant for the dissociation of acetic ac
Leokris [45]

Answer:

k = 2,04x10⁻⁵

Explanation:

The equilibrium of acetic acid (CH₃COOH) in water is:

CH₃COOH ⇄ CH₃COO⁻ + H⁺.

And the equilibrium constant is defined as:

k = [CH₃COO⁻] [H⁺] / [CH₃COOH] <em>(1)</em>

The equiibrium concentration of each specie if the solution of acetic acid is 0,05M is:

[CH₃COOH] = 0,05M - x

[CH₃COO⁻] = x

[H⁺] = x

<em>-Where x is the degree of reaction progress-</em>

As the pH is 3, [H⁺] = 1x10⁻³M. That means x =  1x10⁻³M

Replacing in (1):

k = (1x10⁻³)² / 0,05 - 1x10⁻³

k = 1x10⁻⁶ / 0,049

<em>k = 2,04x10⁻⁵</em>

<em></em>

I hope it helps!

5 0
3 years ago
Which of the following Group 1A elements is the most reactive?
Alisiya [41]
A. Cesium because reactivity of alkali metals increases from the top to the bottom of the group.
7 0
3 years ago
Read 2 more answers
4) In water, Vanillin, C8H8O3, has a solubility of 0.070 moles of vanillin per liter of solution at 25C. What will be produced i
jeka94

Answer:

An unsaturated solution.

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to firstly realize we need to calculate the grams of vanillin in 0.070 moles by using its molar mass of 152.15 g/mol:

m=0.070mol*\frac{152.15 g}{1mol} =10.65g

Thus, since the solubility is 10.65 g per 1 L of solution, we can notice 5.00 g will complete dissolve and produce an unsaturated solution.

Best regards!

8 0
3 years ago
Which of the following would increase the pressure acting on a closed-system chemical reaction?
ANEK [815]

Answer:

the answer would be C adding a chemical catalyst

Explanation:

7 0
4 years ago
A 5 mole sample of liquid acetone is converted to a gas at 75.0°C. If 628 J are required to raise the temperature of the liquid
velikii [3]
The total energy required for this conversion is equivalent to the sum of the energies that are used. There are three steps:

1) Heating of liquid acetone
This used 628 J

2) Evaporation of acetone
This used 15.6 kJ or 15,600 J

3) Heating of acetone vapors
This used 712 J

Adding these quantities,

Total energy = 628 + 15,600 + 712

The total energy required was <span>16940 Joules of 16.94 kJ</span>
7 0
3 years ago
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