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Give an example of a Physical Change. Give an example of a Chemical Change. How are they different?

Question 1 – Change Give an example of a Physical Change. Give an example of a Chemical Change. How are they different? You may use the Internet, textbook, etc. to find information – but please explain or summarize in your own words. Question 2 – Mole? What is a Mole? Pick and element or compound and state how many grams of that substance are needed to have a mole of that substance. You may use the Internet, textbook, etc. to find information – but please explain or summarize in your own words. Question 3 – Exothermic and Endothermic Reactions What is an Exothermic Reaction? What is an Endothermic Reaction? You may use the Internet, textbook, etc. to find information – but please explain or summarize in your own words. Question 4 – Rate of a Reaction What factors influence the Rate of a Reaction? You may use the Internet, textbook, etc. to find information – but please explain or summarize in your own words.