Naming of chemical substances begins with the names of the elements. Choose from 500 different sets of naming chemical formulas flashcards on quizlet. Formula 22 sodium phosphide na 3 p 23 magnesium nitrate mgno 3 2 24 lead ii sulfite pbso 3 25 calcium phosphate ca 3 po 4 2 26 ammonium sulfate nh 4 2 so 4 27 silver cyanide agcn 28. Ap chemistry ion sheet chemical nomenclature you have a choice. Chemical elements, periodic table compound name formula search moles to grams calculator common compounds list chemical equation balancer complete list of acids complete list of bases molar to mass concentration converter molar mass calculator cations, anions list dilution calculator molarity calculator compound prefixes.
Write the formulas of the following chemical compounds. Chemical formulas and naming compounds by amy brown. 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. The discoverer of an element has traditionally had the right to name it, and one can find some interesting human and cultural history in these names, many of which refer to the elements properties or to geographic locations. The isotope subrule if a comparison of atomic numbers fails to reveal a difference in the tree dia grams, the cip rule then compares mass numbers. The formula mass of any molecule, formula unit, or ion is the sum of the average atomic masses of all the atoms represented in its formula. A chemical formula for an ionic compound is electrically neutral.
A system of numerical prefixes is used to specify the number of atoms in a. The second element is named by taking the stem of the element name and adding the suffix ide. However, they will give us a starting point for both naming compounds and writing formulas that indicate the composition and behavior of compounds. Naming and writing formulas for ionic compounds using. Identify the following compounds as ionic compound or covalent compound, write the formula. Ionic compounds are composed of a metal and a nonmetal positive and negative ions a chemical formula shows the kinds and numbers of atoms in the ionic compound. Naming and writing formulas for chemical compounds flow. Chemical formula type of compoundbonding compound name mgf 2. The stock system uses roman numerals in parenthesis to indicate the charge of the. When naming anions, the name of the anion is changed by adding the suffix ide. Metals characteristics have luster shiny can conduct electricity this is means that they are conductors ductile can be pulled out into a wire malleable can be hammered into thing sheets always lose electrons from their valance energy level to form positive ions or cations the roman numeral or numbers with an a beside them. Chemical formulas nomenclature san jacinto college. For example, organic compounds include molecules with carbon rings. This product consists of 4 short documents on writing formulas and naming compounds.
Naming common acids memorize the names and formulas of these acids hydrochloric acid hcl sulfuric acid h 2 so 4 nitric acid hno 3 acetic acid hc 2 h 3 o 2 phosphoric acid h 3 po 4 carbonic acid h 2 co 3 ammonia nh 3 not an acid 11. Writing chemical names and formulas ionic contains one metal naming 1. Nacl is sodium chloride, li 2 o is lithium oxide, kbr is potassium bromide, mgi 2 is magnesium iodide, sodium nitride is na 3 n, calcium bromide is cabr 2. Covalent compound compounds that consist of nonmetallic atoms only. Worksheet number one 1a to 1g are 50 question portions from the pdf file, but are done in.
Chemical formulas some common examples given below chemical formula name importance o2 oxygen gas necessary for animal life co carbon monoxide prevents you from getting o2 because co binds to fe in the hemoglobin in red blood cells co2 carbon dioxide necessary for plant life to produce sugars ch4 methane gas natural gas, burn for energy. If there is no subscript, you assume there is a 1 as the subscript but you just dont write it in. Dec 07, 2016 2 page flow chart to write names and formulas for ionic and covalent chemical compounds with examples. Ionic bonds bonding between a metal and nonmetal or the bond between a positive ion and a negative ion forming a binary compound. We will begin with the rules for elements, binary covalent compounds, ions, and binary ionic compounds. Binary ionic compounds compound made from only two elements when naming a binary ionic compound, the cation is first followed by the anion.
Although the account which follows describes in considerable detail the selection of substance names for chemical abstracts ca indexes, it is not a nomenclature manual. Naming chemical compounds answers name the follow ing ionic compounds. Atoms gain, lose or share electrons with other atoms to be come chemically stable have 8 valence electrons. Learn naming chemical formulas with free interactive flashcards. Chemistry chemical names formulas assessment answers. This activity focused on molecular covalent compounds, while an earlier activity addressed ionic compounds. Chemical formulas also allow chemists to calculate a number of characteristic values for a given compound. In chemical formulas and names for ionic compounds, the cation is written first and the anion is written to its right. Naming binary twoelement molecular compounds is similar to naming simple ionic compounds. How are the chemical formula and name of a molecular compound related. You can use this same method to determine the correct subscript when you are writing a chemical formula based on a name. Their names and formulas reflect the number of hydrogen ions or hydroxide ions they contain. Neidig, lebanon valley college purpose of the exercise use a universal systematic method for naming inorganic chemical substances.
Chemical formulae and equations derivation of formulae key points chemical formula definition. Module 7 writing names and formulas moorpark college. The first box is the intersection between the zinc cation and the chloride anion, so. Naming inorganic chemical substances prepared by m. Answer key naming acids from chemical formulas honors chemistry formula of acid name of acid 1. Covalent compounds classifying compounds the system for naming an ionic compound is different from that for naming a covalent compound, so before a compound can be named, it must be classified as ionic or covalent. Chemical compounds an atom consist of a positively charged nucleus protons and neutrons and orbiting electrons.
Consolidate and extend students can test their understanding of the material in this section by completing the questions in the interactive resource naming nonionic. Write the positive ion, with its charge, then the negative ion, with its charge. Naming ionic compounds an ionic compounds name must distinguish it from other compounds containing the same element. Atoms of elements are not chemically stable until they have 8 valence electrons octet rule. Chemical formula writing worksheet solutions write chemical formulas for the compounds in each box. C 8 h 18 nh 4 there are 8 carbon atoms there is 1 nitrogen atom and 18 hydrogen atoms. When an element can have multiple charges, we must use the stock system. Naming and indexing of chemical substances for chemical. The first element in the formula is simply listed using the name of the element. Derive substance names from chemical formulas, and chemical formulas from substance names. For names and formulas that both identify and differentiate substances. Binary compound metalnonmetal with fixed charge cation. Chemistry lesson02 naming compounds holy trinity academy. Chemical formulas nomenclature binary compounds binary compounds contain only two elements.
Naming molecular compounds 5 extension questions 19. Classifying a compound is not an easy task, but for the. Includes pdf and word document for easy modification. Notice that the formulas for both types of compounds can look very similar, even though their names are quite different. The names are found by finding the intersection between the cations and anions. I most often use these documents as short, daily quiz.
An expression which states the number and type of atoms present in a molecule of a substance. Write the formulas for the following chemical compounds. Calculate the formula mass or molar mass of any given compound. Ionic compounds chemical formula naming and writing. Jan 27, 2020 naming binary twoelement molecular compounds is similar to naming simple ionic compounds. Nomenclature is the process of naming chemical compounds with different.
Ionic compounds ionic compounds are comprised of positive and negative ions. The following format is used for naming binary acids. Write the symbol and charge of the cation first positive ion. Naming monatomic ions when naming cations, the name of the cation is the same as the metals name. Please click here for a pdf version of this tutorial. The first part of the ionic compound name is simply the name of the cation.
In this section, you will learn how to use chemical formulas to calculate the formula mass, the molar mass, and the percentage composition by mass of a compound. Chemical formulas such as hclo4 can be divided into empirical formula, molecular formula, and structural formula. How to read a formula a chemical formula uses symbols for each element subscripts to tell you how many of each element there are. Binary compounds can be divided into two basic types.
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