Describe the difference between physical change and chemical changes in terms of what happens to the particles

Heating a solid substance often causes it to A) condense B) freeze C) evaporate D) dissolve E) melt

A 50 L container holds 100 grams of nitrogen gas at a pressure of 45,000 pascals. Calculate the temperature of the nitrogen gas.

A sample of fluorine gas occupies 810 milliliters at 270 K and 1.00 atm. What volume does the gas occupy when the pressure is doubled, and the temperature increases to 400 K

How can you determine the number of valence electrons in an atom?

Why would a high speed collision cause more damage than a low speed collision?

How many dozen kernels of corn are in a 50 pound bag of corn

How does magnesium obey the octet rule when reacting to form compounds

Is heat conductivity a physical or chemical property?

When 5800 joules of energy are applied to a 15.2-kg piece of lead metal, how much does the temperature change by

What is 230 in scientific notation?