What happens when the temperature of a solid reaches its melting point

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa

What is the chemical formula for the compound formed between sodium and flour one