Which scientist used the word "cell” for the first time in science?

a) matthias schleiden
b) theodor schwann
c) robert hooke
d) anton van leeuwenhoek

Enough of a monoprotic weak acid is dissolved in water to produce a 0.0172 m solution. if the ph of the resulting solution is 2.39 at 20 °c, determine the pka for the acid.

Put these processes of the water cycle in the correct order, starting at the point where the water is in the lake: 1. water evaporates into the atmosphere 2. rain, snow, or other precipitation falls 3. water collects into larger bodies of water 4. water vapor condenses into liquid water

Compare and contrast solutions and suspensions