Answer:
all of the above. they all are chemical reactions
Yes. Look up Newton’s laws of physics. That should help
Humans.
Humans have mass and take up space. :)
Hope this helps!
Molarity is the ratio of the moles of a solute to the total liters of a solution. The solution includes both the solute and the solvent. Molality, on the other hand, is the ratio of the moles of a solute to the kilograms of a solvent.
Fire Burning is the correct answer