Answer: Protons because they have a positive charge.
Explanation:
At the constant temperatures the lighter the gas molecules, the faster the average velocity of the gas molecules.
A salt is more dense than water if it is insoluble in water
Answer: I would say its either exit door or the last one.
Explanation: Hope this helps plz mark brainliest.
<span>0 °C. 8 °C. 29 °C. 15 °C.</span>