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which if the following is a base
A) substance d contains carbon hydrogen oxygen and nitrogen
b) substance b gives off OH- ions that combine with H+ ions when dissolved in water
C) substance c is formed drom the reaction of an acid and base
d) substance a gives off H+ ions that combine with OH- ions when dissolved in water

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taskmasters

B is the most probable answer.

A base is a substance that accepts hydrogen ions. When a base is dissolved in water, the balance between hydrogen ions and hydroxide ions shifts. The base "soaks up" hydrogen ions and the result is a solution with more hydroxide ions than hydrogen ions. This kind of solution is an alkaline solution.

Examples of bases include:

1. Potassium hydroxide

2. Ammonia

3. Acetone

5. Pyridine

6. Rubidium hydroxide

7. Sodium hydroxide

8.Zinc hydroxide

9. Methylamine

10. Lithium hydroxide.



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