Length is a fundamental quantity. give reason.​

Answer:

In the image below

Explanation:

Hope this helps you :)

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

Explanation:

Answer:

where is the option I can't see plz give the option first the I try to give answer

Assuming the other part of the question is;

A solid mixture consists of 44.2g of KNO3 (potassium nitrate) and 7.8g of K2SO4 (potassium sulfate). The mixture is added to 130. g of water. (Assume KNO3 has a solubility of 14 g solute/ 100 g water)

Answer;

26 g

Solution;

-X g of KNO3/ 130 g water= 14 g of KNO3/ 100 g water  

X= 18.2 g (this is the amount of solute that dissolves at 0 degrees C in 130 g water).

if you have 44.3g of KNO3 in 130 g of water at 0 degrees celsius and only 18.2 can dissolve then  

44.2g - 18.2g = 26 g left undisolved which gives you the amount that would crystallize

KNO3 of 10g will undergo crystallization at 0 °

Because the heavier the KNO3 mass will require a higher temperature in the dissolution process.

Further explanation

Potassium nitrate is a nitrate salt compound from potassium with the molecular formula KNO3. Potassium nitrate salt can be made by reacting potassium chloride with sodium nitrate. If the saturated solution each of the solution is mixed with each other, then it will form sodium chloride salt because NaCl in water is small, the salt will settle. By cooling the filtered filtrate KNO3 will undergo crystallization

This compound decomposes with oxygen evolution at 500 ° C according to the reaction equation:

2 NaNO3 (s) -> 2NaNO 2 (s) + O2 (g)

Crystallization is separation by forming crystals so that the mixture can be separated. A gaseous or liquid substance can cool or condense and form crystals because it undergoes a crystallization process. Crystals will also form from a solution that will be saturated with a certain solvent. The more the number of crystals, the better, because the less likely to be polluted by dirt.

Potassium Nitrate has a physical white powder that is easily soluble in water and odorless. Meanwhile, to analyze the structure and characteristics of Potassium Nitrate MM2 data processing is used in the Chemoffice 15.0 application. This data processing is used to determine the shape of compounds, types of bonds in molecular movement compounds and other parts that can not be observed directly by the eye without the aid of tools. And for the form of compounds in 2 dimensions and 3 dimensions used Chemdraw 15.0 and Chem3D 15.0 applications

Learn more

Potassium nitrate brainly.com/question/10847775

Crystallization brainly.com/question/2575925

Details

Grade: High School

Subject: Chemistry

Keyword: kno3, nitrate, crystallization

(d) greenhouse effect