Why protons do not repal in the nucleus

Compare and contrast physical changes with chemical changes.

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.