A cotton swab is dipped into concentrated hydrochloric acid (producing hydrogen chloride gas) while a second on is dipped into concentrated aqueous ammonia (producing ammonia gas). Both cotton swabs ...
Days before residents were evacuated from the Mountain View Tower into the freezing January night, police say a 20-year-old ...
Some metals react with acids and when they do the products are hydrogen ... plus nitric acid gives us magnesium nitrate. Calcium plus hydrochloric acid gives us calcium chloride.
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