I would say the answer is A. Dimitri made the modern periodic table, not chemical symbols, and generally compounds do not have the same properties, for example water which is made of 2 gases.
$611, lower, and $819. i had to learn the hard way.
He thought that they were basically useless except for making clothes and cooking
Social studies is always confusing. Get used to it.
Based on the situation, that was an example of : Free-Rider problems
Free-rider problems refer to a condition when an individual either consume more than the fair share or pay less than the fair share.
Hope this helps
