What volume of 2.35×10-3 M HCl is needed to neutralize 10.5 mL of a saturated Ca(OH)2 solution?

What is the maximum amount of al2(so4)3 which could be formed from 15.84 g of al and 12.89 g of cuso4?

Which proportionality applies to avogadro’s law?

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)