list of chemical compounds and their formulas pdf

List Of Chemical Compounds And Their Formulas Pdf

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The Play dough recipe provided in Gr. This first section is a revision of what learners should have covered in previous grades.

In this lesson we will learn how to write and interpret chemical formulas for elements and compounds. Lowercase or capital letter? It makes a big difference in chemistry! Sometimes the same type of atom can appear in more than one place in a molecular formula.

List of Chemical compounds- their common name, formula and uses

In this lesson we will learn how to write and interpret chemical formulas for elements and compounds. Lowercase or capital letter? It makes a big difference in chemistry! Sometimes the same type of atom can appear in more than one place in a molecular formula. Search for:. Names and Symbols for Elements and Compounds. Learning Objective In this lesson we will learn how to write and interpret chemical formulas for elements and compounds. Learning Outcomes By the end of this lesson you will be able to: Write chemical symbols for elements.

Write chemical formulas for compounds. Identify the number of each type of atom in a molecule based on its chemical formula. These chemical symbols and formulas provide a quick and universal way of identifying pure substances in chemistry. Symbols for Elements Each type of atom or element can be represented by a unique chemical symbol consisting of one or two letters.

The first letter is written as a capital and the second letter, if there is one, is written in lowercase. Chemical symbols are abbreviations for the name of the element. This is quite similar to the English name.

This is very different to the English name. For example, try learning the names and symbols of the first 20 elements, as you will encounter these a lot in chemistry. They are listed in the following table. Commonly encountered metal elements outside of the first 20 are shown in the following table.

Commonly encountered non-metal elements outside of the first 20 are shown in the following table. Formulas for Compounds Each type of molecule or compound can also be represented by a chemical formula.

The formula for a compound represents the number of each type of atom in its molecules or subunits. Chemical formulas consist of two parts: Chemical symbols of each type of atom. Numbers subscripts indicating how many of each atom is in a molecule or subunit if there is more than one. Example 1 Water can be represented by the chemical formula H 2 O. The symbols H and O show that a water molecule is made up of hydrogen atoms and oxygen atoms.

We could also say that water is formed from the elements hydrogen and oxygen. The subscript 2 after the H indicates there are two hydrogen atoms in a water molecule. No subscript after the O indicates there is one oxygen atom in a water molecule. Example 2 Calcium hydroxide can be represented by the chemical formula Ca OH 2. The symbols Ca, O and H show that calcium hydroxide is composed of calcium, oxygen and hydrogen atoms.

We could also say that calcium hydroxide is formed from the elements calcium, oxygen and hydrogen. No subscript after the Ca indicates there is one calcium atom in a calcium hydroxide molecule.

The subscript 2 indicates there is two of everything inside the brackets. Therefore, there are two oxygen atoms and two hydrogen atoms in a calcium hydroxide molecule. Sometimes the name of a compound can give a clue its formula. As with elements, it can be useful to memorise the names and formulas of common compounds. Some compounds that you will encounter regularly in junior chemistry are shown in the following table.

Some Things to Remember Many students get confused when writing the symbols for elements that exist as molecules, such as hydrogen, oxygen and chlorine.

The correct symbol depends on whether you are writing it to represent the atom or the element the actual substance , which is made up of molecules. For example, the symbol for an oxygen atom is O, but the symbol for the element oxygen oxygen gas is O 2.

Remember that symbols for elements consist of only one capital letter. For example, there is a big difference between Co and CO. One is a metal element and one is a compound formed from two non-metal elements. By remembering this, you can also quickly determine if a substance is an element or a compound by checking if it contains one or more than one capital letter in its formula. When counting up the total number of a type of atom in a compound, check if the element symbol is present more than once.

It is written like this to reflect the structure of the molecule. Summary Each type of atom or element can be represented by a unique chemical symbol consisting of one or two letters. The first letter is a capital and the second letter, if there is one, is lowercase. Each type of molecule or compound can be represented by a chemical formula. The formula represents the number of each type of atom in a molecule.

It is therefore a combination of the symbols for the different atoms and numbers subscripts indicating how many of each atom is in a molecule. Save Your Cart. Enter cart title. Save Continue. Share Your Cart. Login first to save cart. Login Sign Up. Remember me Forgot Password? Subscribe to our newsletter. I accept the Terms of Service and Privacy Policy.

Glossary of chemical formulae

This is a list of common chemical compounds with chemical formulae and CAS numbers , indexed by formula. This complements alternative listing at list of inorganic compounds. There is no complete list of chemical compounds since by nature the list would be infinite. From Wikipedia, the free encyclopedia. Alphabetic list of common chemical compounds with chemical formulas and CAS numbers.


Provided below is a list of the chemical formulas of some common chemical compounds (along with their molecular weights). Compound name, Molecular weight.


Chemical Formula & Uses of Some Important Compounds

If you keep an eye on the latest trend followed by SSC for General Awareness questions , you would notice that Science facts are covering major portions of it. To help you quickly take a look at List of Chemical Formulas and their Common Names , we are providing you in this article. To help you attempt the chemistry questions without any glitches, we are sharing with you a detailed list of Chemical Formulas and their Common Names. Chemical formulas are expressions which state the number and types of atoms present in a molecule of a substance. Before moving ahead have a look at the Chemical compounds.

Think about what you call your friends. Some of your friends might have full names long names and a nickname short name. These are the words we use to tell others who or what we are referring to.

In a pure chemical. ChemCatalyst The cards show a sodium ion and three polyatomic ions. This section includes elements from all parts of the periodic table. Word Formation - Worksheets. Here is my accumulated knowledge and methodology.

The common names and formulas of chemical compounds is a very relevant area of study for every competitive exam including SSC and it is important for the aspirants to develop a fair idea on this subject.

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In this list Compound name, Chemical formula of the compound and its uses are given. Uses: Non-prescription drug for relief from acid indigestion and heartburn. Also considered a calcium supplement.. Uses: Used to season food during food preparation and at the table , also used in the past as a method of food preservation. Uses: natural gas, fuel also called Marsh Gas.

Think about what you call your friends. Some of your friends might have full names long names and a nickname short name. These are the words we use to tell others who or what we are referring to. Their full name is like the substances name and their nickname is like the substances formulae. Without these names your friends would have no idea which of them you are referring to. Chemical substances have names, just like people have names.

Она знала, что, если они не будут терять времени, им удастся спасти эту великую дешифровальную машину параллельной обработки. Каждый компьютер в мире, от обычных ПК, продающихся в магазинах торговой сети Радиошэк, и до систем спутникового управления и контроля НАСА, имеет встроенное страховочное приспособление как раз на случай таких ситуаций, называемое отключение из розетки. Полностью отключив электроснабжение, они могли бы остановить работу ТРАНСТЕКСТА, а вирус удалить позже, просто заново отформатировав жесткие диски компьютера. В процессе форматирования стирается память машины - информация, программное обеспечение, вирусы, одним словом - все, и в большинстве случаев переформатирование означает потерю тысяч файлов, многих лет труда. Но ТРАНСТЕКСТ не был обычным компьютером - его можно было отформатировать практически без потерь. Машины параллельной обработки сконструированы для того, чтобы думать, а не запоминать.

List of Chemical Compounds and their Common Names and Formulas

Беккер пожал плечами и вгляделся в надпись. - Да, их тут немало. - Я что-то не понимаю, - вмешался Фонтейн.  - Чего мы медлим. - Сэр, - удивленно произнесла Сьюзан, - просто это очень… - Да, да, - поддержал ее Джабба.

Соедините меня со службой безопасности. Хейл начал выворачивать шею Сьюзан. - Я-я…я убью. Клянусь, убью.

Стратмор его не слушал. Если спасение Сьюзан равнозначно крушению его планов, то так тому и быть: потерять ее значило потерять все, а такую цену он отказывался платить. Хейл заломил руку Сьюзан за спину, и голова ее наклонилась.

 Директор, - сказал Джабба, - Энсей Танкадо владеет нашим банком данных. Дайте ему то, чего он требует. Если он хочет, чтобы мир узнал о ТРАНСТЕКСТЕ, позвоните в Си-эн-эн и снимите штанишки.

И в первую очередь я искренне сожалею о Дэвиде Беккере. Простите. Я был ослеплен своими амбициями. Ее тревога не была напрасной.

Почему вы не дождались полицейских.

И лучшие в мире специалисты-криптографы этого не поняли, прошли мимо, на что он и рассчитывал. - Танкадо посмеялся над нами, - сказал Стратмор. - Вы должны отключить ТРАНСТЕКСТ, - напомнила Сьюзан. Стратмор отсутствующе смотрел на стену.

 Вернитесь назад, - приказала Сьюзан.  - Документ слишком объемный. Найдите содержание. Соши открутила несколько страниц. Механизм атомной бомбы A) альтиметр B) детонатор сжатого воздуха C) детонирующие головки D) взрывчатые заряды E) нейтронный дефлектор F) уран и плутоний G) свинцовая защита Н) взрыватели II.

5 comments

Spotacanpe

Common Chemical Compounds – Names and Formulas. Free GK E-book. Current Affairs and General Awareness section is one of the most important and high.

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Chemical compounds may be classified according to several different criteria.

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Ionic compound is represented by a formula unit, the lowest ratio of atoms in the compound. Page Naming Ionic Compounds. (positive metal ion +.

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