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Naming and Formula Writing for Molecular Compounds
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=ElhicLT-pCc
How to write the names and formulas for molecular compounds: explanation, examples, and practice with answers. • To write the name or formula for molecular compounds we’ll use the Periodic Table and follow some simple rules. Because consists of two non-metals we don't need to balance the charges between atoms. Instead, we'll use prefixes to indicate the number of each element. • More practice naming: https://www.breslyn.org/chemistry/nam... • More practice writing formulas: • https://www.breslyn.org/chemistry/nam... • -- Keys for Naming Molecular Compounds:-- • 1. Write the name for both elements. • 2. Change the ending of the second element to ide. • 3. Place prefixes in front of each element based on the number of atoms present. • 4. The prefix 'mono' is only used on the second non-metal in the chemical formula. • 5. There shouldn't be two vowels in a row. For example, when you have 'mono' in front of 'oxide' it is written 'monoxide', not 'monooxide'. • -- Keys for Writing Formulas for Molecular Compounds-- • 1. Write the element symbol for both elements. • 2. Place a subscript after each element according to its prefix. • Note: Don’t write the subscript '1'. • --Prefixes-- • Mono = 1 • Di = 2 • Tri = 3 • Tetra = 4 • Penta = 5 • Hexa = 6 • Hepta = 7 • Octa = 8 • Non = 9 • Dec = 10 • For a complete tutorial on naming and formula writing for molecular compounds, visit: • http://www.breslyn.org/chemistry/naming • Drawing/writing done in InkScape. Screen capture done with Camtasia Studio 4.0. Done on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo).
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