Round off 61.40 to three significant figures.

You drive 3.4 km west. You then turn north and drive 0.81 km to get to the store. What is your distance traveled?

What is the volume of 33.25g of butane gas at 293 C and 10.934 kPa?

A substance with a high [H + ] would likely have which additional characteristics?

As the number of moles goes up, volume a. goes down. b. stays the same. c. goes up. d. cannot be determined.

Malik formed a hypothesis that an increase in atmospheric oxygen levels by 10% would cause red-legged grasshoppers to grow larger than normal. Suppose that Malik performs an experiment to test his hypothesis.

What scientist do that basis for their investigation

A closed flask contains water at 70 deg C. The total pressure of the air-and-water-vapor mixture is 500.0 torr. What is the partial pressure (in torr) of the air in this flask? Use your book for the vapor pressure of water at this temperature.

What was the approximate overall change in the carbon dioxide content between 1900 and 1962?

What mass of nitrogen Dioxide, NO2, would be produced by the decomposition of 75.0g of copper (II) nitrate?

A tube that carries air from the larynx to the lungs is called