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Determine whether the following reaction is a redox reaction. If it is, identify the element that is oxidized, the element that is reduced, the oxidizing agent, and the reducing agent. 3Ca(s) + 2N2(g) → Ca3N2(s)

Draw the Lewis structure of PF3 on a scrap sheet of paper, apply VSEPR theory and answer the following questions: a) Total number of valence electrons. [a] valence electrons b) Number of lone pairs on central atom. [b] lone pair(s) c) Molecular Geometry. [c] shape d) Polar or Nonpolar. [d] molecule d) Hybridization of the central atom. [e] 

For each of the following compounds specify if they are covalent or ionic: a) Al2O3 [1] b) HClO3 [2] c) NaOH [3] d) N2O5 [4]

For ClF3, the electron geometry is _____________ and the molecular geometry is __________.

For PF6-, the electron geometry is _____________ and the molecular geometry is __________.

Select the coefficients that should be placed in front of each molecule, from left to right, to balance the following reaction. C2H6(g) + O2(g) → CO2(g) + H2O(g)

Predict whether the following compounds are soluble or insoluble in water. a) PbI2  – [a] b) Fe(OH)3 – [b] c) Ag2S – [c]

Match the molecule to the correct molecular geometry.

For COCl2, the electron geometry is _____________ and the molecular geometry is __________.

Select the coefficients that should be placed in front of each molecule, from left to right, to balance the following reaction. C3H8(g) + O2(g) → CO2(g) + H2O(g)