Peter performed an experiment to test which of the three compounds his teacher gave him was an ionic compound. The table shows his results. Compound & Hard & Brittle & }(c) Forms crystals & Dissolves in water & Boiling point (( )^circ mathrm(C)) & Melting point (( )^circ mathrm(C)) & Conducts electricity A & no & no & no & no & 2,567^circ mathrm(C) & 1,083^circ mathrm(C) & no B & yes & yes & yes & yes & 1,465^circ mathrm(C) & 801^circ mathrm(C) & yes C & yes & yes & yes & yes & not observed & no Which compound (A, B, or C) is most likely an ionic compound?

Question

Peter performed an experiment to test which of the three compounds his teacher gave him was an ionic compound. The table shows his results. Compound & Hard & Brittle & }(c) Forms crystals & Dissolves in water & Boiling point (( )^circ mathrm(C)) & Melting point (( )^circ mathrm(C)) & Conducts electricity A & no & no & no & no & 2,567^circ mathrm(C) & 1,083^circ mathrm(C) & no B & yes & yes & yes & yes & 1,465^circ mathrm(C) & 801^circ mathrm(C) & yes C & yes & yes & yes & yes & not observed & no Which compound (A, B, or C) is most likely an ionic compound?

Answer 1

To determine which compound is most likely an ionic compound, we need to consider the properties typically associated with ionic compounds. These properties include:1. Being hard and brittle.2. Forming crystals.3. Dissolving in water.4. Having high boiling and melting points.5. Conducting electricity when dissolved in water or melted.Now, let's analyze the data for each compound:Compound A:- It is not hard and not brittle.- It does not form crystals.- It does not dissolve in water.- It has a very high boiling point of

and a high melting point of

.- It does not conduct electricity.Compound B:- It is hard and brittle.- It forms crystals.- It dissolves in water.- It has a high boiling point of

and a high melting point of

.- It conducts electricity.Compound C:- It is hard and brittle.- It forms crystals.- It dissolves in water.- The boiling point is not observed, but it has a relatively low melting point of

.- It does not conduct electricity.Based on the properties listed above, Compound B aligns with all the typical characteristics of an ionic compound. It is hard, brittle, forms crystals, dissolves in water, has high boiling and melting points, and most importantly, it conducts electricity, which is a key property of ionic compounds when they are in a liquid state or dissolved in water.Compound A, despite having high boiling and melting points, fails to meet the other criteria, especially the ability to conduct electricity. Compound C has some characteristics of an ionic compound but does not conduct electricity and has a relatively low melting point, which is not typical for ionic compounds.**【Answer】**: B

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