CHEMICAL FORMULAS AND FORMULA WEIGHT CALCULATIONS

Na 1 23.0 Cl 1 35.5 Multiply the number of atoms times the atomic weight to get the total mass of each element. Then add the total masses. Elements in Number of atoms Atomic Total the compound of each element Weight Mass —————— ———————— ———— ——— Na 1 …

Chemical Reactions Name - Science Spot

Colors: A = Red, B = Blue, C = Green, D = Yellow 2. Use colored pencils to circle the common atoms or compounds on each side of the equations to help you determine the type of reaction it illustrates. Use the code below to classify each reaction. S = Synthesis D = Decomposition SR = Single Replacement DR = Double Replacement _____

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Chemical Names and Formulas - Weebly

ammonium ion c. A polyatomic ion is a tightly bound group of atoms that behaves as a unit and ... Na 2 S LiBr Cu 3 N 2 MgCl 2 using the crisscross method binary compounds For students using the Foundation edition, ... c. Al 2 Se 3 Compounds With Polyatomic Ions 10 .

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Naming Simple Compounds - California State University ...

Fe ion + 2 Cl-= Fe ion + 2- = 0 Fe ion = 2+ 2. Name the cation by the element name and add a Roman numeral in parenthesis to show its charge. Fe2+ = iron(II) 3. Write the anion with an ide ending. FeCl 2 = iron(II) chloride

Ion Exchange for Dummies - Lenntech

Rohm and Haas Ion Exchange Ion exchange introduction 1 FD Sep 2008 ION EXCHANGE FOR DUMMIES An introduction Water Water is a liquid. Water is made of water molecules (formula H2O). All natural waters contain some foreign substances, usually in small amounts.

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Table 1. Valence Electrons and Ion Formation for the First ...

Feb 23, 2011 · and Ion Formation for the First 20 Elements Element Total Number of Electrons in Neutral Atom Valence Electrons Gain or Lose Electrons Ion Formed Hydrogen 1 1 Gain or Lose 1 H+ or H-Helium 2 2 None None Lithium 3 1 Lose 1 Li+ Beryllium 4 2 Lose 2 Be2+ Boron 5 3 Lose 3 B3+ Carbon 6 4 Gain or Lose 4 C4+or C4-

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Periodic Table, Ion Chart, and Formulas

Periodic Table of the Elements Chemistry Reference Sheet California Standards Test 11 Na Sodium 22.99 Element symbol * Element name 1 H Hydrogen 1.01 3 Li Lithium 6.94 11 Na Sodium 22.99 19 K 39.10 28 Ni Nickel 58.69 37 Rb Rubidium 85.47 59 Pr 140.91 104 Rf (261) 42 Mo 95.94 101 Md (258) 32 Ge 72.61 1A 2 2A