Is the release of CO2 proof for a chemical reaction?

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

When a septic tank backs up a goes in to clean it out

Drug abuse will not lead to physical and psychological dependence. true or false ?