Chemistry, 04.08.2019 04:20 lakenyagillard79
When a small piece of white marble rock is carefully placed in a beaker of hydrochloric acid, bubbles form on the surface of the rock and rise to the top of the liquid. which conclusion best fits this observation? a. the rock heated the acid until it began to boil. b. the rock dissolved in the acid by breaking into its smallest pieces. c. the rock was changed by the acid into its gaseous form. d. the rock reacted with the acid and made a new gaseous substance.
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Chemistry, 23.06.2019 01:30, jonmorton159
At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.
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When a small piece of white marble rock is carefully placed in a beaker of hydrochloric acid, bubble...
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