The pH of a solution is 2.0. Which statement is correct? Useful formulas include (H2011
) - 107H
[OH-]- 10 POH, PH+pOH = 14 and [H3O[OH]=10-14
The pOH of the solution is 12.0.
O The concentration of OH-ions is 1.0 x 10-2 M.
O The concentration of H3O+ ions is 100.0 M.
The pOH of the solution is 16.0.
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A) the enthralling of formation for pure element in its standard state is always positivehope this : )

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .

B. a graduated substance

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts