As a roller coaster goes downhill. A. kinetic energy is converted into potential energy

B. potential energy is converted into kinetic energy

C. electrical energy is converted into potential energy

D. potential energy is converted into electrical energy

Based on its chemical properties, identify the position of each chemical family on the periodic table.

What are the advantages of using the metric system? designed as a decimal system making conversions simpler more accurate system of measurement has prefixes that correspond to an amount to use with all base units used by the entire scientific community

Awhite powder is added to a solution. the images show observations made before the powder is added, just after the powder has been added, and a little while later. (the liquid in the small beaker is phenol red solution.) what evidence shows that a chemical change has taken place?