Ionic bond or covalent bond

Question

Question 1: Think critical: from the given symbols, choose two elements that are likely to form an ionic bond: O, Ne, S, Ca, and K. Next, select two elements that would likely form a covalent bond. Explain.

Question 2: Solve One-Step Equations: Aluminum oxide can be produced during rocket launches. Show that the sum of the positive and negative charges in a unit of aluminum oxide equals zero.

Question 3: What is the formula for potassium sulfide?

Question 4: What is the formula for calcium chloride?

Question 5: What is the formula for lead (IV) phosphide?

Question 6: What is the name of AICI₃?

Question 7: What is the name of Li₂S?

Question 8: What is the name of Cr₂O₃?

Question 9: Write formulas for the fallowing compounds: potassium iodide, phosphorous pentachloride, magnesium hydroxide, aluminum sulfate, dichlorine heptoxide, and calcium nitrate trihydrate?

Question 10: Identify: Write the names of these compounds: Al₂O₃, Ba(CIO₃)₂, SO₂, NH₄CI, PCI₃, and Mg₃(PO₄)₂ * 4H₂O.

Question 11: Determine the oxidation number on each atom in the fallowing compounds: sodium chloride and iron(II) oxide.