They would get a very strange tasting tea, but it would be harmless.
Nothing would happen.
Apple juice
Apple juice
nothing
If you put proxide on an apple it will wilt or it will sink in and make the apple brown.
I barely know.
it will explode
Your clothes would get cleaner.
it would make the fire get bigger
It can damage your voice.
There will be no human
Since there is not any gravity in space, the apple pieces would start floating around.