Answer:b
Explanation: the particles will soon dissolve which means that the particles are changing but the volume is staying the same and the concentration is changing
Answer:
Surfactants reduce the surface tension of a liquid. The Most liklely thing to happen is that the viscosity of the water will decrease.
https://mgdic.files.wordpress.com/2016/12/unit-operations.pdf this
Answer:
when the velocity of an object changes,it is acted upon by an external force
