The main trick to writing formulas from the names is to recall. Typically, nonmetals tend to share electrons, make covalent bonds, and thus, form molecular compounds. For each of the following compounds, indicate whether or not your naming rules from question 15 will apply. We know that n 2o5 could not be an ionic compound because nitrogen and oxygen are both nonmetals and would both be negative as ions. Since we use different methods in naming binary covalent molecular compounds and ionic compounds, the first step in naming or writing the formula of a. Compounds such as ch 3 oh or pf 2 cl 3 are not binary, and compounds such as nacl or cacl 2 are not molecular. Tinii fluoride 9 sicl 4 molecular compound silicon tetrachloride 10 h 2 o 2 arkansas state university, newport.
This multiplechoice quiz covers molecular compound nomenclature and tests your ability to name molecular compounds. Page 5 of 6 other ions that can use different donor atoms are. The chemical formulas of many molecules however, cannot be determined by using valencies. Positive ions metals attract negative ions nonmetals, forming ionic compounds. Give the correct iupac name for the compound with the following molecular formula.
Molecular compounds are named with the first element first and then the second element by using the stem of the element name plus the suffix ide. This video contains plenty of examples and practice problems on the nomenclature of binary. Notice that the formulas for both types of compounds can look very similar, even though their names are quite different. How are the chemical formula and name of a molecular compound related. All of the compounds listed in model 2 are binary molecular compounds. Recall that covalent compounds are those that involve more than one atom bonded together by the sharing of electrons. Chemical nomenclature v common name examples using mercury chemical nomenclature vi binary compounds of two nonmetals. Steps to naming ionic and covalent compounds owlcation. These occur when atoms or groups can either be arranged on the same side cis isomer or on opposite sides trans isomer of the compound relative to the central metal ion. Oct 01, 2016 to name a covalent compound, you need the molecular formula, knowledge of the prefixes used for naming, and a way to look up the name of an element given its atomic symbol. Collaborate with your group members to write a list of rules for recognizing and naming binary. Remove the ending of the second element, and add ide just like in ionic compounds. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Nomenclature worksheet 3 covalent molecular compounds part a.
Binary molecular compounds are composed of only two elements. This is a covalent compound made up of only two different elements. Carbon tetrachloride, ccl 4, is an example of a molecular compound. Solutions for the naming ionic compounds practice worksheet 1 ammonium chloride 2 iron iii nitrate 3 titanium iii bromide 4 copper i phosphide 5 tin iv selenide 6 gallium arsenide 7 lead iv sulfate 8 beryllium bicarbonate 9 manganese iii sulfite 10 aluminum cyanide 11 crpo 4 2 12 vco 3 2 snno 2 2 14 co 2 o 3.
Naming molecular compounds 5 extension questions 19. A molecular compound is usually composed of two or more nonmetal elements. Oct 18, 2016 science quiz naming molecular compounds. Jan 27, 2019 molecular compounds contain two or more nonmetals not the ammonium ion. Information about naming esters is included in some school chemistry courses, such as uk alevel organic. No2 is nitrogeniv oxide and n2o4 is nitrogeniv oxide. With this information in hand, you can follow the naming scheme for covalent compounds. How to name covalent molecular compounds the easy way. Another thing that we need to do when were naming covalent compounds. Esters may be defined as any of a class of organic compounds produced by reactions between acids and alcohols that involve the elimination of water. Molecular compounds are made of nonmetals atoms bonded together by sharing electrons. Molecular compounds or covalent compounds are those in which the elements share electrons via covalent bonds. Naming chemical compounds correctly is of paramount importance. Naming ionic and molecular compounds flashcards quizlet.
Germanium, however, which is also a metalloid again, barely a metal, when bonded with oxygen is sometimes referred to as germanium dioxide, while its ionic name is actually germanium oxide. Molecular nomenclature most compounds that you find everyday are molecular compounds, not ionic. This activity focused on molecular covalent compounds, while an earlier activity addressed ionic compounds. There are no ions and no charge involved in covalent bonding. Is to use greek prefixes to tell the listener or the reader. They are easy to identify, as they consist merely of two nonmetal elements. Rate 5 stars rate 4 stars rate 3 stars rate 2 stars rate 1 star. Based on your answer to b, what type of bonding must be involved in molecular compounds. Do the compounds combine metals with metals, metals with nonmetals, or nonmetals with nonmetals. Romans numerals can be used but often fail to distinguish between some molecular compounds. Start studying naming ionic and molecular compounds. The prefix mono is only used on the second nonmetal in the chemical formula.
Since we use different methods in naming binary covalent. With stepbystep examples and helpful animations your students. Naming binary molecular compounds there are four steps to name binary molecular compounds. A molecular compound is a group of atoms held together by a covalent bond. Prefixes which indicate the number of atoms of each element are used in the naming of inorganic molecular compounds.
Naming acids and bases acid names are based on the anion they form when dissolved in water. Do you think that you have what it takes to get all the names of the compounds right. How many different elements are present in each compound shown. Binary molecular compounds are made from a combination of 2 different atoms, or in the case of diatomic molecules one kind of atom, ie.
Find two compounds in model 2 that contain the pre. How to name molecular compounds composed of two different nonmetals. Formula writing, naming compounds, ionic, molecular, acids, distance learningthis lesson plan bundle includes everything you need to teach and assess. This chemistry video tutorial explains the process of naming covalent molecular compounds with prefixes.
When naming these compounds prefixes are used to denote how many of each atom is bonded in the compound. The greek prefix system chemical nomenclature vii polyatomic ions. Name the first element in the formula first and the second element is named by adding ide to the root of the element name. Binary molecular compounds are composed of two nonmetal elements, such as carbon and oxygen which form carbon dioxide, co 2. Vsepr and naming molecular compounds exploring chemistry. Finally, covalent compounds have many common names. Usually, you can recognize a molecular compound because the first element in the compound name is a nonmetal. D determining the number of single bonds present in a molecule. When you began chemistry class this year, you probably already knew that the chemical formula for car bon dioxide was co2.
Chemical formula type of compoundbonding compound name mgf 2. This trivia quiz is perfect for naming molecular compounds, can you name all. Naming molecular compounds introduction to chemistry. Ionic compounds ion charges add an ion is an atom with a positive or negative charge because it has gained or lost electrons. This page includes information about naming esters with examples of molecular structures of esters. Opposite ions attract just as with protons and electrons.
I explain that ionic compounds typically form between a metallic atom and a nonmetallic atom, while molecular compounds typically form between 2 nonmetallic atoms. Compounds are composed of two or more types of atoms. Some molecular compounds contain hydrogen, however, if you see a compound which starts with h, you can assume it is an acid and not a molecular compound. May 29, 2011 how to name molecular compounds composed of two different nonmetals. Naming covalent compounds key write the formulas for the following covalent compounds. Molecular compounds are made when two or more elements share electrons in a covalent bond to connect the elements. Identify any remaining names of compounds in model 2 where the pre. Naming covalent compounds worksheet my chemistry class. Write names for each of the following molecular substances. Polar covalent compounds have a partial charge at each end of the molecule. When we name any molecular compound, we need to find the name of each element in the compound and to know the prefixes for the total number of atoms of each element in the compound.
Fel ici hbro the rules do not applythis compound is not binary. Sugar molecular for example has similar physical properties as salt ionic but they are very different in reality. Aug 04, 2012 naming molecular compounds 5 extension questions 19. Ionic compounds occur when a metal left side of table and an non metal right side of table react to form a new molecule. Solutions for the naming ionic compounds practice worksheet 1 ammonium chloride 2 iron iii nitrate 3 titanium iii bromide 4 copper i phosphide 5 tin iv selenide 6 gallium arsenide 7 lead iv sulfate 8 beryllium bicarbonate 9 manganese iii sulfite 10 aluminum cyanide 11 crpo 4 2 12 vco. Nomenclature worksheet 3 covalent molecular compounds. Angela dello iacono rpt naming ionic and molecular compounds. Recall, covalently bonded molecules are made up of nonmetals only. Another molecular compound is dinitrogen pentoxide, n 2o5. If you like the worksheets you see here, you may be interested in the following. When the two elements in a binary molecular compound are both in the same group, which element is. Aug 07, 2017 this chemistry video tutorial explains the process of naming covalent molecular compounds with prefixes.
The only type of molecular compound a chemistry student is expected to be able to name is a binary covalent compound. Examine the molecular formulas given in model 1 for various molecular compounds. Binary covalent compounds will contain only two types of nonmetal elements. Compounds made entirely of nonmetals are generally molecular compounds. Place prefixes in front of each element based on the number of atoms present. Naming molecular compounds and formulas yeah chemistry.
This video explains how to use a chemical name to write the formula for that compound. Molecules are collection of atoms that are building. The name of the element farthest to the left in the periodic table is. When you began chemistry class this year, you probably already knew that the. Chemistry naming compounds handout page 11 of 12 give the formulas for each of the following molecular compounds. Since we use different methods in naming binary covalent molecular compounds and ionic compounds, the first step in naming or writing the formula of a compound is to determine which of the 2 compound classes it belongs. Naming ionic compounds, writing ionic compound formulas, writing formula from names 6. If you dont have ms word, you can download the latest version of the adobe acrobat reader for free by clicking here.