Which of these is a property of a substance that is composed of atoms that are held together by ionic bonds? a) it can be shaped into wires b) it has a low melting point. c)it conducts electricity when in solid form. d)it conducts electricity when it is dissolved in water.

Option (d) is the correct answer.

Explanation:

An ionic bond is defined as the bond formed by transfer of one atom to another which are chemically combining to each other.

For example, LiCl is an ionic bond as it is formed by transfer of electron from lithium atom to chlorine atom.

When dissolved in water then ionic compounds dissociate into ions. As electricity is the flow of ions so, when current is passed through an ionic solution then they are able to conduct electricity.

In solid state, ions of ionic solid are not able to flow freely. Hence, they do not conduct electricity in solid state.

Therefore, we can conclude that a property of a substance that is composed of atoms that are held together by ionic bonds is that it conducts electricity when it is dissolved in water.

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it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2