What is a chemical formula, Science

Assignment Help:

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.


Related Discussions:- What is a chemical formula

Determine the term - soil moisture, Determine the term - soil moisture ...

Determine the term - soil moisture The higher the soil moisture, the more rapid is the rate of reaction. The quantity of liming material to be applied to raise the soil pH to a

Discuss the elements of cohort study, Question 1 Discuss the elements o...

Question 1 Discuss the elements of cohort study 2 Explain the steps in a Research process 3 What is probability sampling? What are the different types of probability sampling?

Substantial amounts of corundum and magnetite, What common type of paper ha...

What common type of paper having substantial amounts of corundum and magnetite? Sand Paper

Reproduction, what are 5 different types of asexual reproduction?

what are 5 different types of asexual reproduction?

Adulteration of food, Adulteration of food: We  live in a society where...

Adulteration of food: We  live in a society where some times foods and even medicines are sold in an adulterated form by mixing it with other materials, which are  neither food

Determine if pore diffusion mass transport may be limiting, Consider the fo...

Consider the following data for ethylene hydrogenation to ethane in a batch reactor:                  C 2 H 4 + H 2 → C 2 H 6 The reaction may be considered to be first-or

Waste water treatment, discuss various types of screens and add a note on s...

discuss various types of screens and add a note on screening is a stratgy used in waste water plant

Solar system, solar system At night you can see very many stars in the...

solar system At night you can see very many stars in the sky. But during the day, only one star is .visible, and that is  the Sun. This is not because there is anything extrao

Explain the simple cells - primary visual cortex, Explain the Simple Cells ...

Explain the Simple Cells - Primary Visual Cortex They are most sensitive to lines oriented in a particular angle to the vertical. Simple cells probably receive a convergence of

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd