Answer:
atoms or molecules
Explanation:
Gas particles are constantly bumping into each other and the borders of their container.
Answer:
Explanation:
The actual boiling point is probably between 34C and 40C.
Answer:
Ni
Explanation:
An active metal is a highly reactive metal. Active metals are found high up in the activity series.
Active metals react with other metals that are lower than them in the activity thereby displacing the lower metals from a solution of their salts. This is what may have happened in the other two reactions.
Ni is the most active metal listed in the question since it can react a compounds with Pb(NO3)2(aq) to liberate Pb metal.
Answer : Mass
Explanation : Mass measures the amount of matter in a substance or an object.
