Answer:
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Explanation:
Primary succession is the series of community changes which occur on an entirely new habitat which has never been colonized before. For example, a newly quarried rock face or sand dunes. Secondary succession is the series of community changes which take place on a previously colonized, but disturbed or damaged habitat.
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You have a. 3, b. 2, e. 6, f. 3, i. 1
2.9 is the ph of a buffer solution made by adding 0. 010 mole of solid naf to 50. ml of 0. 40 m HF.
pH
The hydrogen ion concentration in water is expressed by pH. Specific to aqueous solutions, pH is the negative logarithm of the hydrogen ion (H+) concentration (mol/L):
pH equals -log(H+)10
The phrase refers to a solution's basicity or acidity in a range of 0 to 14, with pH 7 representing neutrality. The pH decreases and acidity rise as the concentration of H+ ions in the solution.
Since pH is a logarithmic function, a pH shift of one unit (for example, from 7 to 6) corresponds to a 10x change in the concentration of H+ in the solution. However, hydrogen ion activity, not concentration, is what is actually measured.
To learn more about pH refer here:
brainly.com/question/15239039
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