Chemistry, 02.01.2021 17:10, preservations
the _ of an element is the average mass of an element naturally occurring atom, or isotopes, taking into account the _ of each isotopes
Answers: 1
Chemistry, 20.06.2019 18:04, krojas015
Can anyone (a-level) a student was analysing a carbonate compound, mco3, containing an unknown group 2 metal, m. the student carried out thermal decomposition on 0.730g of the carbonate and measured the volume of gas produced. mco3 (s) mo (s) + co2 (g) the student collected and measured 120cm3 of carbon dioxide. 1 mol of carbon dioxide occupies 24 000 cm3 under these conditions. calculate the molar mass of the group 2 carbonate and hence deduce the identity of the group 2 metal, m.
Answers: 3
Chemistry, 22.06.2019 10:00, alexabdercmur
Why is the structure of molecule important to its function?
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Chemistry, 22.06.2019 16:10, sierram298
Amixture initially contains a, b, and c in the following concentrations: [a] = 0.300 m , [b] = 1.05 m , and [c] = 0.550 m . the following reaction occurs and equilibrium is established: a+2b⇌c at equilibrium, [a] = 0.140 m and [c] = 0.710 m . calculate the value of the equilibrium constant, kc.
Answers: 1
the _ of an element is the average mass of an element naturally occurring atom, or isotopes, taking...
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