please help me complete all 10 questions only help if you will answer all 10!!!

MULTIPLE CHOICE PLEASE HELP FINISH ALL 10 and be specific!

Question 1 (10 points) Describe the following property or change as physical or chemical: Copper metal turns green when exposed to air and water. physical chemical Question 2 (10 points) Describe the following property or change as physical or chemical: decomposes in ultaviolet light O physical chemical Question 3 (10 points) Describe the following property or change as physical or chemical: Heating aluminum until it melts. physical chemical Question 4 (10 points) Describe the following property or change as physical or chemical: Baking a cake. O physical chemical Question 5 (10 points) Describe the following property or change as physical or chemical: removing salt from water by evaporation. Ophysical chemical Question 6 (10 points) List the liquids in the density demonstration in order from lowest density to highest density water, hexane, methylene chloride water, methylene chloride, hexane hexane, methylene chloride, water hexane, water, methylene chloride methylene chloride, hexane, water Omethylene chloride, water, hexane Question 7 (10 points) Heating potassium dichromate, K2Cr2O7, results in a _______ change. O chemical O physical Oneither Question 8 (10 points) Heating ammoium dichromate, (NH4)2Cr2O7. results in a change. chemical physical Oneither Question 9 (10 points) Sublimation is a change O chemical O physical neither Question 10 (10 points) Which of these is the most dense? O HDPE PETE aluminum water