Matthias Schleidan observed plant leaves under a microscope. How did this help contribute to cell theory It helped to show that all plants are made of cells.
It helped to show that all plants are made of chloroplast.
It helped to show that plant cells can be created from soil.
It helped to show that plants cells cannot function independently.

At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.