Chemistry, 20.09.2019 19:30 gregorio03
Aparticular atom has 58 protons and 82 neutrons. what are the atomic number, mass number, and periodic table symbol of this isotope?
Answers: 1
Chemistry, 22.06.2019 00:30
This element exists in adundance in the sun.explain how you would go about capturing sunlight.would this captured sunlight contain any of the element?
Answers: 1
Chemistry, 22.06.2019 06:00
Match the name of the following compound: mgso4 ยท h2omagnesium sulfate monohydratemagnesium (ii) sulfate monohydratemagnesium (ii) sulfate hydratemagnesium sulfate hydrate
Answers: 1
Chemistry, 22.06.2019 07:00
What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will
Answers: 1
Chemistry, 22.06.2019 14:00
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
Aparticular atom has 58 protons and 82 neutrons. what are the atomic number, mass number, and period...
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