Which compound is an exception to the octet rule?
H2O
HCl
CCl4
ClF3

Answers

Answer 1

Answer:

$\boxed{{\text{Cl}}{{\text{F}}_3}}$ is an exception to the octet rule.

Further explanation:

Chemical bond:

The attraction between atoms, molecules or ions that is responsible for the formation of chemical compounds is known as a chemical bond. It is formed either due to electrostaticforces or by the sharing of electrons. There are many strong bonds such as ionic bonds, covalent bonds, and metallic bonds while some weak bonds like dipole-dipole interactions, London dispersion forces, and hydrogen bonding also exist.

Octet rule:

According to this rule, the elements have the tendency to bond with other elements in order to acquire eight electrons in their valence shells. This results in achieving a stable noble gas configuration. Generally, all elements obey octet rule but there are some exceptions to this rule. For example, Be and B do not follow the octet rule.

The atomic number of oxygen is 8 and therefore it has six valence electrons in it. The atomic number of hydrogen is 1 so it has only one valence electron in its valence shell. Oxygen needs two more electrons to fulfill its octet so it forms two single bonds with two hydrogen atoms. Therefore ${{\text{H}}_{\text{2}}}{\text{O}}$ obeys the octet rule. (Refer to the structure in the attached image).

The atomic number of chlorine is 17 and therefore it has seven valence electrons in it. The atomic number of hydrogen is 1the so it has only one valence electron in its valence shell. Chlorine needs one more electron to fulfill its octet so it forms one single bond with a hydrogen atom. Therefore HCl obeys the octet rule. (Refer to the structure in the attached image).

The atomic number of chlorine is 17 and therefore it has seven valence electrons in it. The atomic number of carbon is 6 so it has four valence electrons in its valence shell. Each chlorine atom requires an electron to complete its octet. So four single bonds are formed between one carbon atom and four chlorine atoms. Therefore ${\text{CC}}{{\text{l}}_{\text{4}}}$ follows the octet rule. (Refer to the structure in the attached image).

The atomic number of chlorine is 17 and therefore it has seven valence electrons in it. The atomic number of fluorine is bond so it has seven valence electrons in its valence shell. Both chlorine and fluorine are just one electron short of the stable noble gas configuration. In ${\text{Cl}}{{\text{F}}_{\text{3}}}$ , there is only one chlorine atom and three fluorine atoms so their octets cannot be fulfilled. But one chlorine atom can form only one bond with one fluorine atom. Therefore ${\mathbf{Cl}}{{\mathbf{F}}_{\mathbf{3}}}$ does not follow octet rule and hence is an exception to this rule. (Refer to the structure in the attached image).

Learn more:

1. Which molecule cannot be adequately described by a single Lewis structure/ brainly.com/question/6786947

2. Do carbon dioxide and water have the same geometry? brainly.com/question/2176581

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Chemical bonding and molecular structure

Keywords: H2O, HCl, CCl4, ClF3, octet rule, chemical bonds, hydrogen, chlorine, fluorine, carbon, 1, 8, 9, 17, one electron, seven electrons, six electrons, four electrons, exception.

Answer 2

Answer:

Answer:Answer is Option 4 or (D) On EDGE 2021

Explanation:

Related Questions

What determines that an element is a metal?a. the magnitude of its charge c. when it is a Group A element b. the molecules that it forms d. its position in the periodic table
When determining an element identity what is the most important Subatomic part to look at?
An element has an atomic number of 30. How many protons and electrons are in a neutral atom of the element?A. 30 protons, 30 electrons B. 15 protons, 15 electrons C. 60 protons, 30 electrons D. 30 protons, 0 electrons
The tendency of molecules to move toward areas of lower concentration is called _____.a. suffusion b. diffusion c. suspension d. effusion
49 After decaying for 48 hours, l/16 of the original mass of a radioisotope sample remains unchanged. What is the half-life of this radioisotope?(1) 3.0 h (3) 12 h(2) 9.6 h (4) 24 h

A 182 pound male body was found decomposing in a dense wooded area 1.43 kilometers away from the nearest road. How many meters would a suspect have to drag the body into the woods if the victim was already deceased and transferred to this secondary location from the vehicle

Answers

Answer:

1430 meters

Explanation:

Enter the molecular formula for butane, C4H10.
Express your answer as a chemical formula.

Answers

Butane is from the family of alkanes with –ane as its family name. The but- prefix stands for having four carbon atoms. The C4H10 is the general formula of butane and can also represent other forms or structures of butane. However if the question asks for the molecular formula of butane, think of how many electrons it can share to the hydrogen atom. The carbon atom can share 4 and hydrogen 1. So if the three hydrogen atoms are attached to the first carbon, the other shared electron is attached to the second carbon. The second carbon atom can accommodate two hydrogen and 1 carbon. The third carbon can accommodate 2 hydrogen atoms and 1 carbon and the fourth carbon can accommodate 3 hydrogen atoms. The molecular formula is CH3-CH2-CH2-CH3.

Compared with warm fronts, cold fronts are?

Answers

Warm fronts is the transition zone that marks where a warm air mass starts replacing a cold air mass. The movement is from southwest to southeast while Cold fronts is where a cold air mass is pushing into a warmer air mass. They move fast, up to twice as fast as a warm front.

Would the concentration of hydroxide ion in a 0.30 m solution of potassium hydroxide (koh) be greater than, less than, or equal to 0.30 m?

Answers

Potassium hydroxide KOH is a strong base which can completely ionize to form potassium and hydroxide ions.

The equation representing ionization of KOH,

$KOH(aq)-->K^(+)(aq)+OH^(-)(aq)$

The mole ratio of hydroxide to KOH from the above equation is $(1molOH^(-) )/(1molKOH)$

The given concentration of KOH solution=0.30M

Calculating the concentration of hydroxide ions present in 0.30M KOH solution:

$(0.30mol KOH)/(L) *(1mol OH^(-) )/(1 mol KOH) =0.30(mol)/(L)OH^(-)$

Therefore the concentration of hydroxide ion will be equal to 0.30 M in a 0.30 M KOH solution.

Final answer:

The concentration of hydroxide ion in a 0.30 m solution of potassium hydroxide would be equal to 0.30M. Potassium hydroxide is a strong base, it completely dissociates in water producing an equal concentration of hydroxide ions. In a basic solution where the concentration of Hydroxide ions is high, the concentration of hydronium ions will be low.

Explanation:

The concentration of hydroxide ion in a 0.30 m solution of potassium hydroxide (KOH) would be equal to 0.30 M. This is based on the fact that potassium hydroxide is a strong base and it completely dissociates in water, which means one KOH molecule produces one hydroxide ion. Therefore, the concentration of the hydroxide ion [OH-] in the final solution would be equal to the initial concentration of the potassium hydroxide.

This is different from the behavior of weak acids and bases which do not completely dissociate in water, leading to a lower concentration of hydronium (H3O+) or hydroxide (OH-) ions compared to the initial concentration of the acid or base.

However, it's important to note that in solutions with a high concentration of hydronium ions, the concentration of hydroxide ions will decrease according to Le Chatelier's principle, which describes how equilibrium adjusts when it's disturbed. Conversely, in a basic solution—like this 0.30 M KOH solution—where the concentration of hydroxide ions is high, the concentration of hydronium ions will be comparatively low.

Learn more about Ionic Dissociation here:

brainly.com/question/29125502

#SPJ3

Count the total number of atoms in sio2:

Answers

Atoms are the basic units of matter and the defining structure of elements. We count the number of atoms by the total number of elements present in the compound. In this case, we have 1 atom of Si and 2 atoms of oxygen which would have 3 total number of atoms.

I NEED THESE ANSWERS ASAPPLEASE HELP!!

chemically balance the following:

____ Mg(OH)2 + __ HCl → ____ MgCl2 + __ H2O

____ CH4 + ____ O2 → _____ CO2 + ____ H2O

___ Cu + ___ Br2 → ___ CuBr2