Please help me with biology...?

Question

I only need one word answers.

1. What reduces the concentration of hydrogen ions in a solution?
2. When is water the solvent?
3. What is an ion with a charge of -1?
4. What is the ability for water molecules to cling to sides of a tube?
5. What increases the concentration of hydrogen ions in a solution?
6. What is the measure of how much solute is dissolved into a solvent?
7. What is one or more substances dissolved into another substance?
8. What makes water stretchy and difficult to break?
9. What is an ion with a charge of +1?
10. What helps to minimize rapid changes in H+ and OH- concentration in a solution?
11. What does the solute dissolve into?

All answers are appreciated.

Answer 1

(1) base
(2) always
(3) (monovalent) anion
(4) adhesion
(5) acid
(6) concentration
(7) solute or solubility
(8) hydrogen bond (can't think of just one word)
(9) (monovalent) cation
(10) buffer
(11) solvent

Answer 2

1. What reduces the concentration of hydrogen ions in a solution? a buffer
2. When is water the solvent? usually always
3. What is an ion with a charge of -1?
4. What is the ability for water molecules to cling to sides of a tube? adhesion
5. What increases the concentration of hydrogen ions in a solution? more acid
6. What is the measure of how much solute is dissolved into a solvent? solubility
7. What is one or more substances dissolved into another substance? a mixture, or substance
8. What makes water stretchy and difficult to break? adhesion
9. What is an ion with a charge of +1?
10. What helps to minimize rapid changes in H+ and OH- concentration in a solution?
11. What does the solute dissolve into? the solvent (water)

Answer 3

1. a base
2. when there's more of it than any other substance in a solution
3. Cl-
4. capillary action
5. an acid
6. molarity is the most common one
7. solute
8. hydrogen bonding
9. Na+
10. a buffer
11. the solvent

Answer 4

7) mixture
8) surface tension