In my Science class today we did like this thing with alk-seltzer and now we have to write a paragraph about the reason why the smaller peices dissolved quicker than the big piece? i need help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
2007-10-17 10:30:09 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
If you dropped one big tablet of Alka-seltzer into a bowl of acid, it would take a while to dissolve, If you looked a the bubbles forming then you would see they are only forming on the outside "ring" of the tablet. If you chopped or crushed an alka-seltzer tablet up, then you would have tons of little pieces. They will be dissolved faster because they now have a greater Surface Area. This is a key term you will need to know for the future.
More surface area = Fast reactions
less surface area = slow reactions
2007-10-18 09:22:39 · answer #1 · answered by Anonymous · 0⤊ 0⤋
They are dissolving at the same rate. The smaller pieces seem to disappear more quickly, but this is not the case.
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2007-10-17 10:34:34 · answer #2 · answered by twowords 6 · 0⤊ 2⤋
increased surface area for the smaller pieces over the larger piece means that they disappear sooner.
2007-10-17 10:38:00 · answer #3 · answered by Anonymous · 1⤊ 1⤋
when broken into smaller pieces, there is more area of contact with water for the reaction to take place.
2007-10-17 10:34:25 · answer #4 · answered by TheBodyElectric 3 · 0⤊ 2⤋
they're smaller
2007-10-17 10:33:42 · answer #5 · answered by peaches6 7 · 0⤊ 2⤋