Which of the following equations can be classified as an acid-base reaction?

Awater molecule is polar because there is an uneven distribution of these between the oxygen and hydrogen atoms.

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?

What organelle other than the nucleus houses dna in a eukaryotic cell?