PLEASE HELP! 1) What type of reaction is this?
Zn + 2HCl > ZnCl + H
2) Balance the equation (Hint, you need to balance the left side with the right side)

1) single replacement

2) Zn + 2HCl > ZnCl + H

equation is already balanced

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

cytokinesis is the splitting of a cell membrane to form 2 identical daughter cells. it's similar to mitosis as both cells have identical copies of dna and cytokinesis is a step in the mitotic cycle.