Pls halp Name three different properties you can test before and after a chemical reaction to determine if a new substance was formed.

How does the author use the character of torvald helmer to explore a social use? -by revealing the changes that can happen to a person who has gotten wealthy quickly - by revealing attitudes related to spending and saving that men held during the victorian era -by revealing the bad financial advice that was given to many people in the victorian era -by revealing the hardships that fell on many people who lived during the victorian era