How does heavy water react with `Al_4C_3`?

Heavy water is

How is heavy water prepared?

How diborane reacts with oxygen?

How diborane reacts with water?

How does ammonia react with a solution of Cu^(2+) ?

How does sodium hydride react with diborảne?

Show by equations, how both temporary and permanent hard water react with soap.

All naturally occurring sugars are found to have the D-configuration. How does glucose react with hydroxylamine ? Give equation.