Question

Supriya has a lot more cards than Sanya and is willing to give her 256 cards for a month. She will charge an interest of 100% per month compounded weekly for these cards.

Answer 1

In early production, first calcium cyanamide was converted into dicyandiamide, which was heated above its melting temperature to produce melamine. Today most industrial manufacturers use urea in the following reaction to produce melamine: 6 (NH2)2CO → C3H6N6 + 6 NH3 + 3 CO.