2.00 mL of a 0.75 M solution of potassium

permanganaté K2 MnO4 Solution is us od 10

make a 500-00 mL solution. what is the

concentration of the new solution.

When might a technique called water displacement be used?

Suppose sodium chloride mixes with Silica (a hard glassy material that does not dissolve in water) Describe a way to remove the sodium chloride

To identify a liquid substance, a student determined its density. Using a graduated cylinder, she measured out a 45-mL sample of the substance. She then measured the mass of the sample, find ing that it weighed 38.5 g.

Look at the graph below, which shows the results of a survey about antibiotic resistance in bacteria. Which question will most likely be investigated based on these results? A.

Of the choices below, which gives the order for first ionization energies? Of the choices below, which gives the order for first ionization energies?

Polarity of a molecule depends on the polarity of individual bonds in that molecule. a. True b. False

What causes dipole interactions

What do holes in volcanic rock illustrate about the conditions in which

Susan dropped a nail into a graduated cylinder filled with water. She then recorded the number of millimeters the water rose in the cylinder. Which property of the nail can be determined by the change in height of the water?

Por que un solido mantiene su forma?