A gas sample has a volume of 222 mL at 55.0 °C and 100.0 kPa pressure. Find the volume at

20.0 °C and 75.5 kPa.

You chill your reaction in an ice bath when adding nitric acid to the sulfuric acid. why?

What happens when acid and base are mixed together

A rock has a mass of 12000 g. It contains 300.0 grams of gold. What is the mass percent of gold in the rock? 25.00% 4.000% 2.500% 100.0%

Why are some elements stable on their own while others are more stable in compounds

When 69.9 g heptane is burned it releases __ mol water. __ C7H16 + __ O2 → __ CO2 + __ H2O

Determine the name of the compound Li2O

Complete the reactions to show how butanoic acid may be converted to phenyl propyl ketone.

As a sample of the radioactive isotope 131I decays, its half-life (1) decreases (2) increases (3) remains the same

How many Joules of energy are required to change 10.0 gram of ice at - 2.0 C to water at 20.0 C? (use your constants) 440 J 66,000 J 880 4220 J

Why are Van der Waals forces important? A) They determine how strong dipole moments will be in polar covalent molecules B) They are the strongest type of intermolecular force that can act on polar and non-polar molecules C) They are primary