Video: Solar Pioneers in Private: Thinking Beyond the Business - Zhengrong Shi, Founder of Suntech Power. What motivates Dr. Zheng Rong Shi for his company?

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?

Compare and contrast physical changes with chemical changes.

Describe the process that was used in this lab to create magnesium oxide, specifically identifying the type of chemical reaction. explain why the product had a higher mass than the reactant, and how this relates to conservation of matter.