Classify the following as Physical or Chemical changes. a) Water evaporating b) Sulfur dioxide reacts with water to make acid rain c) Metal rusting d) Dissolving sugar in a cup of coffee e) Burning of gasoline

Iwll give extra points to who gets this for ! what type of reaction is this? ?

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.

Wind and moving water provide energy. chemical mechanical thermal none of the above