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 kind of questions do they ask at a science fair
Explain the Radioactive Proteins If a sample of plasma is allowed to incubate with the radioactive iodine ( 131 I) for 30 minutes or more, some of the protein combines with iod
Healing Touch of Lasers: Contrast the above application of lasers with their uses in medicine where the laser is working wonders. A laser can be applied with almost perfect
Discuss in brief about the Red soils Red soils are characterised by a rusty red colour due in most cases to the presence of various oxides of iron. They are either formed in
Discovery of Microbes The discovery of microbes and the fact that they cause infectious diseases is one of the greatadvances in science, which has helped us in understanding
How are babys produced
Fits : Fits of various kinds may be accompanied by unconsciousness, and are usually characterized by the casualty being unaware of his/her reactions. You should remember the follo
Explain Abnormalities due to Changes in Serum Electrolytes The intracellular and extracellular electrolyte concentration difference is responsible for the resting membrane pot
Define Galactose - Abnormal Constituents of Urine Galactose: Galactose is present in the urine in the conditions of galactosemia, a metabolic defect caused due to the deficienc
Define Albumin in the Urine Albumin in the urine generally means leaking of the plasma albumin through the inflamed renal glomerulus (glomerulonephritis). It may also be presen
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