David is making an omelet. She breaks some eggs into a bowl and uses a fork to beat the eggs. Then, she mixes shredded cheese into the eggs. Finally, she pours the mixture into a hot pan and cooks it until it forms a solid omelet. During which step does a chemical change occur? (7 Points) David breaks eggs into a bowl.

David uses a fork to beat the eggs.

David makes a mixture of eggs and cheese.

David cooks the mixture of eggs and cheese until it forms a solid.

Gusing the milligrams of ascorbic acid you entered above, the ratio of total sample volume to aliquot volume, and the total milligrams of the vitamin c tablet that you dissolved, calculate the mass of ascorbic acid in the vitamin c tablet for each trial. do this by scaling up to find the amount (mg) of ascorbic acid in your 250 ml flask. enter your calculated mass of ascorbic acid in the vitamin c tablet, for each trial. be sure to enter your calculated mass in the corresponding order that you entered your milligrams of ascorbic acid. the milligrams of ascorbic acid you entered for entry #1 previously should correspond to the mass of ascorbic acid that you enter for entry #1 here.