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

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

Part 1: include important facts found through your research. part 2: include your visual display. include your summary of “the chemistry of water” from the national science foundation website. include your experiment. part 3: include responses to the reflection questions.

Chemical engineering who specializes in negotiating for large purchases and instructing customers in use of the products are