Yes, sack of rice is a count noun:The singular is a sack of rice.The plural is sacks of rice.
please restate your question...
That would depend on the size of the sack and the material it is made ot of and how damp that material was. Also if the sack is empty it can not be "of rice" it is just and empty sack!
50 Kilos.
sack and feild
These are goods which have the quality of substitutability. In law they are sometimes described as fungible. Basically if you want a pound of rice from a sack of rice, it doesn't matter which grains from the sack you get, because all of the grains in the sack are interchangeable.
1.270,696
A sack.
Cold on the Shoulder - Tony Rice album - was created in 1984.
alot
100 grams
no of course not