Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
What is a chemical formula?
A chemical formula is a way of representing molecules without drawing them. The chemical formula shows the ratio of atoms that form any given molecule. Covalent and ionic compounds can be represented as chemical formulas. The following are the guidelines to writing and interpreting chemical formulas, including some examples of common ionic compounds and their formulas.
1. Always use the symbols from the periodic table; for example: "Mg".
2. The subscript numbers on each element represent the relative numbers of particles of each type in the molecule. These numbers represent the ratio of atoms within a molecule; for example: MgCl2 has one magnesium atom (Mg) for every two chlorine atoms (Cl2). 3. If the element in a molecule is a metal, its symbol goes first and on the left; for example: NaCl, where Na (sodium) is the metal, and chlorine (Cl) is the nonmetal.
Here are some common ionic compounds found on Earth: NaCl, MgCl2, HCl, NaH, NaF, LiF, CaCl2. There are thousands more.
what is biological sickness of soil and give mangement measures?
In what ways does over-grazing lead to soil erosion?
Assessment is the process of collecting information to find out what students are learning. As we have examined different instructional models throughout this course we have learne
Origin of life on the earth: Man has always wondered how he came into existence, who created him, and why he was created. Curiosity in this connection has been so strong that
Explain the Reflex control - Movements of Gall Bladder Reflex control: During digestion, reflex stimulation of gall bladder takes place. Entry of acid into the duodenum reflex
Rutherford atomic model
Food Web: Within an ecosystem, there are many different food chains. Some organisms may be involved in several of the food chains at the same time. So a number of food chains
Explain Role of the Mucous in Body Systems and Organs - The gastrointestinal tract: The microbes which enter through the mouth are caught in the mucous and eliminated with sput
Lab hygiene : The need for continuous attention to hygiene in any type of laboratory cannot be overemphasised. Any spillage of chemicals, battery acid, blood, plasma, serum, etc.
What is First Aid? First-aid is the immediate and temporary care given to the victim of an accident or sudden illness. Its purpose is to (1) help preserve life, (2) preve
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd