Question

how does a molecular compound compare to the elements that make up the compound?
a. the properties of a compound depend on the identity of the component elements, and not the chemical bonds they form.
b. the properties of a compound depend on the size of the molecule, and not the component elements.
c. the properties of a compound are generally similar to the properties of the elements that make it up.
d. the properties of a compound are usually very different from the properties of the elements that make it up.

Explanation:

When elements combine to form a molecular compound through chemical bonds, a new substance is created. The properties of this compound are determined by the types of chemical bonds and the arrangement of atoms, not just by the identity, size - related to the component elements or similarity to the elements' properties. For example, hydrogen and oxygen are gases, but when they combine to form water, water has very different physical and chemical properties compared to hydrogen and oxygen.

Answer:

D. The properties of a compound are usually very different from the properties of the elements that make it up.