An electrical device that slows the flow of charge in a circuit

Why is retrograde motion an apparent motion

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.

A5.00 g of a in . g of at aa 5.00 g of b in . g of .?at .