Chemistry, 29.07.2019 05:20, xxkeyxx51

A806.3 ng sample of an unknown radioactive substance was placed in storage and its mass measured periodically. after 47 days the amount of radioactive substance had decreased to 100.8 ng. how many half-lives of the unknown radioactive substance have occurred?

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Chemistry, 21.06.2019 19:00, cutebab4786

Consider the point on the plot where 10.0 g of naoh have been added. what amount of naoh, in moles, has been added? 0.308 mol fecl3 initially present

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Chemistry, 21.06.2019 22:30, 12375819

For the following, determine the type of reaction and then give products.

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Chemistry, 22.06.2019 02:30, vcornejo7

Based on the equation and the information in the table, what is the enthalpy of the reaction?

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Chemistry, 22.06.2019 06:20, Naysa150724

If i can still dissolve more sugar into the solution at a certain temperature what would i call that solution

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