tintin

why a weight reading is considered constant when the last two consecutive weights are within 0.0003g?

Quantitative analysis of soda ash by double indicator *why there is a need to boil distilled water in the preparation of base solutions? *why a mixture of NaOH and NaHCO3 is incompatible? *why there is a need t o boil the solution before reaching the meth...

a regular triangle and a regular hexagon have the same perimeter length.If the length of a side of hexagon is 20cm,how long is each side of the triangle?

a pentagon has sides 2N+7,3N+2,6,7N,5N-6.If the perimeter is 180,find the length of each side.