80.0 liters of oxygen gas is collected over water at 50 degrees celcius. the atomsphereic pressure in the room is 96.00 kPA. what is the partial pressure of oxygen?

A certain rock has a mass of 125 g. The rock is gently lowered into a graduated cylinder whose water level is 250 mL. When the rock is completely submerged, the water level rises to 300 mL What is the volume of the rock?

Lactose is a disaccharide (two monosaccharides joined together). to metabolize lactose, individuals require an enzyme known as lactase. what is true about this reaction? lactose is a disaccharide (two monosaccharides joined together).

How do the properties of table salt compare with those of sodium and chlorine?

15 Which statement describes the particles of an ideal gas, based on the kinetic molecular theory? (1) The motion of the gas particles is orderly and circular. (2) The gas particles have no attractive forces between them.

What is the diagram of 2CO2

Chris is studying oxidation and reduction reactions. Which of the following could she use as an example of an oxidation reaction?

In a short circuit as the resistance decreases what happens to the current?

Describe the characteristic of chemical structure found at the core of each steroid hormone

A molecule has one carbon-carbon double bond and four monovalent atoms or groups. how many different geometric isomers exist for this molecule?

While waiting for your car to warm up one winter morning, you notice a liquid dripping from your tailpipe. You recently learned in chemistry class that combustion reactions occur in car engines.