Avogadro's number was calculated by determining the number of atoms in

A. 12.00 g of carbon-12

B. 14.00 g of carbon-12

C. 12.00 g of oxygen

D. 14.00 g of oxygen

What Happens when the temperature of an object increases? A) The Objects Particles Move Faster. B) The Number of the objects particles increases. C) The objects particles stop moving. D) The objects particles move closer together.

What type of orbital do the lone pair electrons on oxygen occupy in ethanol?

Name the element found in a water molecule.

Predict the products when aqueous silver nitrate is added to an aqueous solution of sodium chloride.

A student dissolves 0.0688 mol of sodium hydroxide in water to make a 0.250 L solution. What is the molarity of the solution? a. 0.17 M b. 0.28 M c. 2.5 M

Car Q and z are put though an endurance test to see if they can travel at 120 km/h for 5.0 hours. Each car has a 45-L fuel tank. Car z must stop to refuel after traveling for 4.2 hours. Car Q, however, travels for 5.4 hours before running out of gas.

What happened to the atoms in the heated metal ball so that it didn't fit through the ring?

A 3.00 L flexible container holds a sample of hydrogen gas at 153 kPa. If the pressure increases to 203 kPa and the temperature remains constant, what will the volume be?

Measurement of the functions of a nephron reveals a glomerular capillary pressure of 69 mm Hg, and a pressure in the capsular space of 15 mm Hg.

Water is unique because the density of it's solid is less than the density of it's liquid. Describe how life would be different if this weren't true