How many grams is 1.45 moles of aluminum?

Alarge marble is dropped in a graduated cylinder with 35ml of water in it.the water level increases to 49ml.what is the volume of the marble

Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 × 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)

Use the periodic table to determine how many grams of oxygen would be required to react completely with 859.0 g c2h2