When equal volumes of equimolar solutions are combined, the concentration of each solution ... ?

a. decreases by one fourth

b. increases by one half

c. decreases by one half

A 22.25 g piece of metal is dropped into a graduated cylinder with 126.3 mL of water. If the density of the metal is 4.43 g/cm3, what is the total volume in the graduated cylinder in mL with the correct number of significant digits?

You are investigating an organic compound. It has the following characteristics: an oxygen atom is bonded to two carbon groups, but there are no hydrogens bonded to electromagnetic neighbors. Which compound is it?

A train covers 168 km in 4 hours. Find its speed.

The keq of a reaction is 4 x 10-7. at equilibrium, the

Which of the following examples is a compound containing an ionic bond? A. O2 B. H2O C. CaO D. CH4

Electric force is an A. attraction and repulsion between protons and electrons . B. attraction and repulsion between protons and neutrons. C. attraction and repulsion between neutrons and electrons.

A salt crystal has a mass of 0.18 mg. how many nacl formula units does it contain?

Which of the following is easist to accelerate? A. bowling ball B. tennis ball C. golf ball D. ping pong ball

Fish need at least 4 ppm dissolved o2 for survival. part a what is this concentration in mol/l?

How does a runoff get polluted.