How many moles of hydrogen are in 5.2 moles of c7h18

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration

What is the most important factor in determining climates.

Use the de broglie's wave equation to find the wavelength of an electron moving at 4.5 × 106 m/s. show your work. note: h= plank's constant (6.62607 x 10-34 j s)