Describe what happens when carbon dioxide dissolves in seawater by putting the steps below in the correct order, starting with dissolution on top. Instructions Choice 1 of 3. H2CO3 dissociates into HCO3- (bicarbonate) and H+ or into CO32-(carbonate) and 2 H+. toggle button H2CO3 dissociates into HCO3- (bicarbonate) and H+ or into CO32-(carbonate) and 2 H+. Choice 2 of 3. Carbon dioxide dissolves in seawater. toggle button Carbon dioxide dissolves in seawater. Choice 3 of 3. CO2 combines with H2O to form H2CO3 (carbonic acid). toggle button CO2 combines with H2O to form H2CO3 (carbonic acid).

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.