Classify the following substances as ionic or covalent by examining their properties.
“Based on the properties of a substance, how can you tell if its bonds are ionic or covalent?”
An investigative question for observation might be “How do you determine if a substance is ionic or covalent?” All biological research is done through the process of the scientific method. A scientific method begins with a question of inquiry from which a hypothesis is derived. Several qualitative and quantitative experiments are carried out to test this hypothesis. Based on the results of experiments, a hypothesis is declared true or false.
An ionic compound is a chemical compound dissociated into positive and negative ions, but globally neutral (it is a bond which usually involves a metal).
A covalent bond is a bond in which two valence electrons are shared between two nonmetals (which is often the case in organic substances). In this type of bond, there must be an electronegativity difference of less than 1.7 on the Pauling scale.
Coming back to the question, the first question to consider is whether the substance is simple or compound (all are compound).
The next question for substances is whether there is a metal atom or a carbon atom in the substance.
The next survey is a confirmation, calculating the difference in electronegativity between the atoms of substances according to the Pauli scale. If it is less than 1.7, it is a covalent bond, therefore a covalent compound. otherwise it is an ionic bond, therefore an ionic compound.
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