The first 'reaction' that we tried for our hand warmer involved dissolving potassium carbonate (K 2 CO 3) in water. Potassium carbonate is one of the chemicals left behind in the ashes of burnt wood.

The "All About That Bass" hitmaker shared a carousel of snaps to Instagram showcasing a trendy new outfit complete with hand and leg warmers. Trainor posed in front of a concrete wall in a white ...