Frank pulls down on a garage door with a force of 80 N. If the door weighs 210 N, what is the net downward force on the door?

What's a period? What do elements in the same period have in common?

A sample of ideal gas at room temperature occupies a volume of 12.0 L at a pressure of 392 torr. if the pressure changes to 1960 torr, with no change in temperature or moles of gas, what is the new volume, V2?

How many meals a month must a Nautilus have to survive?

The physical change of liquid water to water vapor is called a. desalination. c. condensation. b. evaporation. d. precipitation.

Which of the following are not at equilibrium? Check all that apply. Check all that apply. The concentrations of reactants and the products are not constant. The rate of the forward reaction does not change.

What is the metric unit for density

Is the compound CO ionic or covalent

What is the volume in ml of one pound of mercury?

How does the number of molecules in one mole of carbon dioxide compare with the number of molecules in one mole of water? A. There are four times as many molecules in one mole of carbon dioxide as there are in one mole of water. B.

Suppose you had 1.0 mol samples the following gases at STP. If the volume of each of the samples of gas was reduced to one tenth of its original size and the temperature remained the same, which gas would have the lowest pressure?