Chemistry, 11.12.2020 01:00, gerardogonzale362
One atom of an element possesses 80 protons, 80 electrons, and 121 neutrons. Given this information, what is the atomic mass of the element?
a)160
2) 281
3)201
4) 41
Answers: 3
Chemistry, 22.06.2019 01:30, MickeyxX7096
Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. the values of phosphorous acid are 1.30 6.70 calculate the ph for each of the given points in the titration of 50.0 ml of 1.5 m h3po3(aq) with 1.5 m koh(aq) .
Answers: 3
Chemistry, 22.06.2019 02:00, hemolelekeakua
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 10:10, ragegamer334p3xlso
Stage in which a star’s outer layers have started to cool and grow outward?
Answers: 3
One atom of an element possesses 80 protons, 80 electrons, and 121 neutrons. Given this information,...
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