What kind of energy does the sun release?

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

In one or two grammatically correct sentences, write a definition for the term molecule geometry

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)