A gas has a volume of 5.0 L at a pressure of 50 kPa. Solve for V2 when temperature is held constant and the pressure is increased to 125 kPa.

a. 12.5 L

b. 0.2 L

c. 2.0 L

d. 1250.0 L

To a flask, 15.0 mL of 1.25 M hydrofluoric acid is added. Then, 3.05 M KOH is used to titrate the acid sample. Write the balanced net ionic equation for the acid-base reaction.

The amount of energy required to change the phase of a molecular substance such as sucrose is greater than an ionic substance such as table salt. true or false

What property of carbon cycle makes it a good illustration of conservation of matter

This is the rate at which a substance undergoes a chemical change.

Which substance is an example of a colloid

What kind of wavelength do television signals have? a. Short c. Long b. Intermediate d. Very rapid

What gene is responsible for tumor suppression? A. beta - galactoside B. p53 C. alpha goblin D. beta goblin

How does ur body maintain constant tempature on a hot day?

1. What is the probability of rolling a five on one die three times in a row? 2. The allele for a cleft chin, C, is dominate among humans. Using a punnet square, what are the results of a cross between parents with genotypes Cc and cc

A chemical is placed in a beaker containing 20 g of soil and 500 mL of water. At equilibrium, the chemical is found in the soil ast a concentration of 100 mg. kg-1 of soil.