A concept map for four types of intermolecular forces and a certain type of bond is shown. No
Yes
Are ions
present?
No
No
Are molecules
with permanent
dipoles present?
Are polar
molecules
present?
Yes
Yes
Yes
Is H atom
bonded to F. O, or
Natom?
No
D
B
D
E
Compare the relative strength of the two forces C and D. Explain how you determined this comparison by identifying the forces.

How can you use chemical equations to predict the products of the reaction you can carry out?

The diagram below shows a cell placed in a solution. a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution. only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it. it will expand as water moves into it. it will shrink as water moves into it.

Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)