a.  0.500 mol Rb     b.  0.134 mol Kr a.  0.6046 x 10^23 molecules    b.  1.5 x 10^24 molecules a.  3.00 x 10^24 molecules     b.  3.13 Continue Reading →

Identify each of the following compounds as ionic, covalent, or acid.  Then write the formula for the compound: 1.Cobalt (II) perchlorate 2.) Tetracarbon Heptasulfide 3.) Sodium chlorite 4.) Hydroiodic acid Continue Reading →

Identify each compound as ionic, covalent, or acid.  Then name the compound: ) PbSO4 ) AlF3 ) BaO2 ) N2O5 ) HClO MgBr2 Ag2Cr2O7 ZnCl2 Fe(OH)3 H3PO4 Mixed Compounds #3 Continue Reading →

Classify each of the following compounds as ionic, covalent, or acid.  Then write a formula for each compound: 1.Phosphorus pentachloride 2.) Aluminum nitrite 3.) Nitrous acid 4.) Tin (II) sulfate Continue Reading →

Mixed Compounds: (Contains ionic, covalent, and acids to practice): Set 1: Write the name when given the formula Set 2:  Write the formula when given the name Set 3:  Write Continue Reading →

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Atomic Structure (Powerpoint notes) Atomic Structure (PDF notes for printing) Atoms Video to Watch: https://www.youtube.com/watch?v=Y7LhSfj11w0 AtomicStructureFlowChart (for reference Atomic Structure Practice (worksheet to print)   Click here for answers to the atomic structure practice! Ions Practice Continue Reading →

Remember that during a physical change, we change the way matter looks but we do not break bonds or make new ones.  Therefore, physical changes would not alter the chemical Continue Reading →