Which of the following are pure substances? a. sugar
b. Sand
c. gold
d. maple Syrup
e. eggs

Iwill give extra points to who gets this right

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?