calcium + water phenolphthalein
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@mrteverett thanks.
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Is calcium+water a physical change or chemical?
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how is smell like? the smoke!!!
zumhlian 1 year ago
@zumhlian It's somewhat pungent because some of the hydrogen gas and its interaction with compounds (e.g. those that contain sulfur) in the air.
mrteverett 1 year ago
This is definitely a chemical change, since two new compounds - hydrogen and calcium hydroxide are produced when calcium is added to water.
mrteverett 2 years ago