Amy watches as her teacher adds a small piece of sodium to water. She makes these
observations.

The sodium moves around on the surface of the water
Bubbles are formed.
After the reaction finished, the teacher added Universal
Indicator to the solution. The indicator went purple.

a) Explain what the bubbles show?
b )Explain why the indicator went purple?
​

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation:

answer; i believe the correct answer is (solid gold);

each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i