Chanice drives her scooter 7,000 metres north. she stops for lunch
and then drives 5,000 metres east. what distance did she cover?
what was her displacement?

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?

What is calcium oxide+diphosphorus pentoxide--> calcium phosphate balanced

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)