What is a pure substance made of positive and negative ions in a fixed ratio called?(1 point) Responses an ionic compound an ionic compound a hydrogen bond a hydrogen bond an atom an atom a polar molecule
An ionic compound.
A pure substance made of positive and negative ions in a fixed ratio is called an ionic compound.
The correct answer is "an ionic compound."
To arrive at this answer, we need to understand the characteristics of the given substance. In this case, the substance is described as being made up of positive and negative ions in a fixed ratio. This indicates that the substance is formed through the attraction between cations (positive ions) and anions (negative ions).
To determine what this type of substance is called, we can consider the different types of chemical compounds. A compound is a substance formed when atoms of different elements combine chemically. Ionic compounds are a specific type of compound formed by the transfer of electrons between atoms, resulting in the formation of positive and negative ions.
To summarize, a pure substance made of positive and negative ions in a fixed ratio is called an ionic compound.