Which of the following indicates that a chemical change has happened during cooking? a. butter melts. b. energy is transferred from the stove to a pan. c. bubbles form in boiling water. d. the food darkens.

Type the correct answer in the box. spell all words correctly.what is the correct term for living the most sustainable life you can within your current circumstances? when your are being as sustainable as you can within your current lifestyle, you are said to be sustainability.

How many grams of ammonia would be produced by the decomposition of 16.93 mlof hydrazine? (the density of hydrazine is 1.021g/ml)

How is the way a mixture is combined different from how a compound is combined?