Asubstance undergoes change. which of the following indicates that the change was a chemical change?

a. the substance changed state.
b. the molecules of the substance changed
c. the substance changed shape.
d. the density of the substance changed.

Here’s one way to follow the scientific method. place the missing steps in the correct position in the process

Many pharmaceutical drugs are organic compounds that were originally synthesized in the laboratory. which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology

What is the work done by the electric force to move a 1 c charge from a to b?