My lunch was rated as 670kJ according to the label, a tin of carrot and corriander soup. I have yet to explode or combust, though the day is young
As Scary said, we are way under 1mol of reactants. But if you only have 2g of reactants then lets round that up to 6kJ of heat, enough to raise a litre of water by 1.4C in temperature. That could be quite exciting, I mean not take your head off exciting unless you actually swallow the stuff, but sounds like a potentially nasty burn.
(from 1J can raise the temperature of 1g of water by 0.24C).