The data in the table are the result of a paramecium being placed in a hypertonic salt solution.

salt concentration contractions per minute
outside paramecium
very



very

which statement correctly describes the bars on a bar graph representing the data?
a. the graph has five bars of equal height.
b. the bars range from tallest for very high concentration to shortest for very low concentration.
c. the bar for very low concentration is twice the height of the bar for medium concentration.
d. the bar for very high concentration is five times the height of the bar for very low concentration.

Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.

What will most likely happen when two bromine atoms bond together?

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5