MERCURY
a stopwatch
It depends on what metal you're referring to. Mercury boils at 674 °F (357 °C). Tungsten boils at 10,706 °F (5,930 °C). Iron boils at 5,182 °F (2,862 °C).
It depends on the metal. Water (H2O) boils at 215°c (100°f).
When a hot enough object meets water, some of the water boils instantly. As any substance boils it expands.
Salt water boils HOTTER, not necessarily faster.
Liquid neon boils at 27 degrees Kelvin, so no one's really sure how fast it expands.
Are you sure you got that right? No metal melts at 881.4, but sodium boils at 881.
Sodium (look up a video of the reaction before you do anything though)
no it is the molecules in the water moving fast and bumping into each other
metal dragonid
Yes it is. Metal Storm can fire up to 1 million rounds per minute, very fast.