Because of the law of conservation.
Why did the steel wool not change when it was pulled apart?
It stays the same.
When Ice melts, theh volume of water is smaller than the ice, how does the mass of the water after meltin compare to the mass of the ice?
it changed because when it was added particles from the alka seltzer reacted with the water causing particles to leave.
Why the the mass of the water change when the alka seltzer was dissolved?
.Law of Conservation of Mass
Mass is conserved in a system when no particles are released or added.
mass
Measured in grams, measured with balance or scale, is a measureable property of matter, made from particles only, and conserved in a system when same number of particles stays the same
Because of the law of conservation.
Why did the steel wool not change when it was pulled apart?
It stays the same.
When Ice melts, theh volume of water is smaller than the ice, how does the mass of the water after meltin compare to the mass of the ice?
it changed because when it was added particles from the alka seltzer reacted with the water causing particles to leave.
Why the the mass of the water change when the alka seltzer was dissolved?
.Law of Conservation of Mass
Mass is conserved in a system when no particles are released or added.
mass
Measured in grams, measured with balance or scale, is a measureable property of matter, made from particles only, and conserved in a system when same number of particles stays the same