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

Think about how you can use le chatelier’s principle to find possible solutions to the design problem. describe at least two ways to increase the yield (amount) of ammonia based on this principle.

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

Is a pencil falling to the floor anon contact force, a force, or a contact force