Can two objects be made of the Same substance if they have the same volume

no

Explanation: theres a chance but generally no because there can be different substances in different amounts which can have similar volumes

c. 75.7

i think that is the right

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.