Yes, It is a physical change because it's only losing air. when you put air in the balloon it's still a balloon, and when it loses air it's still a balloon. So it's a physical change since it didn't change in substance.
Yes it is physical, even when only the 'growing' balloonis considered; blowing is also physical.
Blowing doesn't involve a chemical change.
it changes form
yes it is reversible
Physical, because the balloon did not have a change in its chemical composition when it broke.
yes
When thinking of a balloon, it's best to think of two different chemical compounds that do not mix, the balloon itself and air. What makes the balloon pop is that the pressure of the air exceeds the force of the chemical bonds of the balloon. In order for a chemical reaction to take place, you need to start off with one set of chemicals that become a new set of chemicals.However, when a balloon pops, no new chemicals are created. All that happens is that the electron bonds of the compound we know of as the balloon break.
Yes, because when it's blown up, it's still gunpowder. Blowing is caused by a chemical reaction.
it changes form
Yes, it is a physical change. Nothing chemically changed about the balloon.
yes it is reversible
This is a physical change.
Physical, because the balloon did not have a change in its chemical composition when it broke.
physical change
physical change
Mixing is a physical process.
Physical.
physical change
no, bursting of balloons is a physical change as the only change that occurs that that the shape of the balloon changes . Coming out of air is not a chemical change.
No molecules are chanced, thus it is NOT a chemical chance. It's not much of a physical change either; the pressure inside is just a little bit higher.