Mary sue is making caramel ice cream. in the first part of the process, she combines a cup of sugar and a cup of water in a saucepan. she cooks the mixture over medium heat until the sugar melts and browns to a light amber color. then she adds the same amount of water to the mixture along with a cup and a half of cream and milk. which part of the preparation indicated a chemical change?

Ab c or d ? i’m not sure what the answer is

Which of the following statements is true about energy quantization at the atomic level? electrons in the outermost orbits are the most stable. electrons in all the orbits around the nucleus have the same amount of energy. electrons in the orbit closest to the nucleus have the least amount of energy. electrons absorb or release the same amount of energy independent of the energy levels.

The lewis diagrams for magnesium and fluorine are shown below. what is the correct chemical formula for magnesium fluoride? a. mgf b. mg2f c. mgf2 d. mg2f3