Blog

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. C8H18(g) + 25O2(g) → 16CO2(g) + 18H2O(l)

Given the following Lewis structures for cyanate ion: 1. What is the formal charge of each atom in structure A? a) Formal charge of O [a] b) Formal charge of C [b] c) Formal charge of N [c] 2. What is the formal charge of each atom in structure B? a) Formal charge of O [d] b) Formal charge of C [e] c) Formal charge of N [f] 3. What is the formal charge of each atom in structure C? a) Formal charge of O [g] b) Formal charge of C [h] c) Formal charge of N [i] 4. Based on the formal charges determine which Lewis structure (A. B, or C) is more favorable? [j]

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.