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Potassium with water
Reacts violently
Melts into a shinny ball that dashes around the surface
Burns with a lilac flame
Sodium with water
Reacts violently
Bubbles of gas
Melts into a shiny ball that dashes around the surface
Lithium with water
Quickly
Bubbles of gas
Calcium
Slower than Lithium
Bubbles of gas
White precipitate produced
Potassium with acid
Vigorously
Bubbles of gas
Metal disappears
Sodium with acid
Vigorously
Bubbles of gas
Metal disappears
Lithium with acid
Vigorously
Bubbles of gas
Metal disappears
Calcium with acid
Vigorously
Bubbles of gas
Metal disappears
Magnesium with acid
Quickly
Bubbles of gas
Magnesium disappears
Exothermic
Colorless solution formed
Zinc with acid
More slowly
Bubbles of gas
Zinc disappears
Colorless solution formed
Iron with acid
Slower than zinc
Bubbles of gas
Iron disappears
Pale-green solution formed