Chemistry, 06.01.2020 10:31 devenybates
An element x atomic number 3,relative atomic number 6.94 and consists of two isotopes of mass numbers 6 and 7 respectively.
what is the mass number of the more abudant isotope of x?
Answers: 3
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Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?
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Which piece of equipment would me most useful for measuring the volume of some water? a. pan balance b. graduated cylinder c. tweezers d. flask quick
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Match the name of the following compound: mgso4 · h2omagnesium sulfate monohydratemagnesium (ii) sulfate monohydratemagnesium (ii) sulfate hydratemagnesium sulfate hydrate
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An element x atomic number 3,relative atomic number 6.94 and consists of two isotopes of mass number...
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