Which of the following is NOT a physical change?

a. grating cheese

c. fermenting of cheese

b. melting cheese

d. mixing two cheeses in a bowl

The number of atoms in 1 mol of carbon is a. 6.02x10^22 b. 6.02x10^23 c. 5.02x10^22 d. 10.02x10^26 e) none of the above

Convert 32mL into liters

The equation for the production of methane is c + 2h2 (g) → ch4 (g). how many liters of hydrogen are needed to produce 20. l of methane?

How do you express relative amounts of each element in a compound?

Select the correct answer. Which statement is true according to the kinetic theory? O A. Molecules of different gases with the same mass and temperature always have the same average density. OB.

What is the mass of an original 5.60-gram sample of iron-53 that remains unchanged after 25.53 minutes?

What happens as a result of the kinetic energy of the particles in a liquid being comparable with the intermolecular attractions between the particles? A The particles do not move enough to change positions, so the liquid is not compressible.

How many moles are im 8.31x1023 molecules of h2so4

Which terms most precisely describes the cellular process of breaking down large molecules into smaller ones?

A gas in a rigid container is heated so that it's kelvin temperature doubles. What happens to its pressure