Answers: 3
Chemistry, 22.06.2019 02:00
The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?
Answers: 3
Chemistry, 22.06.2019 11:30
Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.
Answers: 3
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
Which is a heterogeneous mixture a jar of nuts...
Mathematics, 20.10.2020 09:01
Mathematics, 20.10.2020 09:01
Mathematics, 20.10.2020 09:01
Mathematics, 20.10.2020 09:01
Mathematics, 20.10.2020 09:01
Business, 20.10.2020 09:01
Health, 20.10.2020 09:01
Mathematics, 20.10.2020 09:01
English, 20.10.2020 09:01
Arts, 20.10.2020 09:01
Mathematics, 20.10.2020 09:01