1. Nacho Bake Kelsey Garrison

2. Recipe ingredients (Makes 6 servings) 1 (12 ounce) package of Velveeta Shells macaroni and cheese ¾ cup of sour cream ¾ cup jar of Salsa 1 lb of hamburger meat ¾ cup of shredded cheddar cheese ½ cup of tortilla chips 1 (1 1/4 ounce) packet of taco mix

3. Recipe Directions Cook macaroni as directed Cook hamburger meat with taco seasoning as directed on package Drain macaroni and add the sour cream and mix together In a 13 x 9 pan spread ½ of the macaroni on the bottom, top with the hamburger meat, sprinkle ½ of the cheese, and put the other ½ of macaroni on top Cover with foil and bake in the oven on 400 degrees for 15 minutes Take out and top with rest of cheese, thin layer of salsa, and top with crushed tortilla chips. Put back in oven uncovered for 5 minutes

4. Recipe converted metric 340 grams of Velveeta shells 454 grams hamburger meat 35 g package taco seasoning mix 177 mL sour cream 177 mL shredded cheddar cheese 177 mL salsa 118 mL coarsely crushed tortilla chips 1lb X 454g = 454g 1lb

5. Chemical change When you are cooking the hamburger meat and the meat changes from a red color to a brown color, this indicates a chemical change.

6. Physical change When you add the shredded cheese on the top and bake the cheese till it melts, this indicates a physical change.

7. An ionic compound involved Sodium phosphate Na 3 (PO 4 ) Na 1+ (PO 4 ) 3+

8. A covalent compound involved Hydrogen peroxide H 2 O 2 Polar Hydrogen bond

9. stoichiometry 25 Servings X 354g 6 Servings 1,892g hamburger meat 146g taco seasoning mix 738 mL Sour cream 738 mL Shredded cheese 738 mL salsa 492 mL coarsely crushed tortilla chips = 1,475g Velveeta shells

10. Is it practical to make adjusted amount? No it is not practical to make the adjusted amount because it would be very difficult to measure and buy the right amount.

11. Work Cited