Which of the following leads to a lower rate of diffusion?

A. Heated gas

B. Lower molar mass of particles

C. Higher velocity of particles

D. Reduced temperature

Assume that you have an unknown consisting of an aqueous solution of a salt that contains one of the ions listed above. Which ions must be absent on the basis of each of the following observations of the unknown? a. CO3 b. Cr2O7 c. NH4 d. Ba e. Al

A chemistry student needs 30,0 mL of pentane for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of pentane is. Calculate the mass of pentane the student should weigh out.

Why it is that evaporation causes cooling, but boiling causes heating?

How many atoms of gold are in 54.5 grams?

In the laboratory how could you determine if a solid as an ionic or metallic bond

How would you describe the motion of plates in a collision zone?

The type of solution formed by creek water after heavy rain is called a colloid. true or false.

Whose work did Niel Bhor build upon?

How many rings does an alkane have if its formula is c8h12?

What is the result of a neutralization reaction between nitric acid (HNO3) and potassium hydroxide (KOH) ?