Answer:
A-Shape
C-state
Explanation:
reactivity and flammability are both indicators of chemicals changes
yes yes yes yes yes yes yes yes yes yes yes yes yes yes
Sorry if I'm wrong but I think that it is B.
Explanation: Process is diffusion. The gas molecules follow a zig-zag path through the tube as they collide with the air molecules in the tube. The purpose of the glass tube is to eliminate air currents and to see if the gas molecules will move on their own.
<u><em>I guess this helped you</em></u>
<em><u>I hope you would mark me as BRAINLIEST!!</u></em>