In this lab, six different metals were tested for their reactivity in water. From less reactive to most reactive, the metals were as follows: Aluminum, Magnesium, Calcium, Lithium, Sodium, and Potassium
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Observing a Metal's Reactivity in Water Observations: Metal Reaction in Water Phenolphthalein Aluminum * Sank to bottom * No, or very little gas produced Magnesium * Sank to bottom * No, or very little gas produced Calcium * Temperature raised * A lot of Hydrogen gas was formed * "Milky" substance formed around calcium * Dissolved into white precipitate * smoked Lithium * Hydrogen gas was formed * Li sample moved around on the top of the water * Dissolved * Oil layer was left on the surface * Turned pink/purple * Stayed at top * Hit particles of Li, turned dark pink * Made Li particles sink Sodium * Immediately formed a ball * 'Fizzing" sounds * Formed oil layer on surface * Dissolved * Clouded water * Pink/ purple * Floated on surface Potassium * Violent reaction * Pink flames * Loud "crack" before it finished reacting * Sparked * Left oily layer on surface * Pink/purple * Floated on surface Discussion In this lab, six different metals were tested for their reactivity in water. From less reactive to most reactive, the metals were as follows: Aluminum, Magnesium, Calcium, Lithium,...

