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1. two pieces of chocolate
2. Two chocolates
I know the difference between two bars of chocolate and two pieces of chocolate.

My question is this.
Can I just say "give me two chocolates" when I should say "give me two pieces of chocolate?" (or think about this. I who speak "give me two chocolates" don't wanna add "pieces of" because its long and take a few 0.x second. So can it be the reason why "can you give me two chocolates" correct?
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If you want two individual chocolates from a box or bag, you can say 'Please give me two chocolates'.

Rover
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Rover_KE.If you want two individual chocolates from a box or bag, you can say 'Please give me two chocolates'.Rover
I can say " 'Please give me two chocolates' " instead of 'Please give me two pieces or chocolates' because the "pieces" is just unncessary and sometimes inappropriate way of describing some chocolate products?
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A piece of chocolate is one broken off a bar or block of chocolate.