If a balloon comes into contact with a sweater, both objects become electrically charged. What type of charge does the sweater have after contacting the balloon, and how did it obtain its charge?

Which term refers to a property that depends only on the amount of a substance? ©@

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

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.