Describe what happens in a chemical reaction and how it is balanced.

Use the drop-down menus to answer each question. which runner finished the 100 m race in the least amount of time? which runner stopped running for a few seconds during the race? at what distance did anastasia overtake chloe in the race?

Will mark brainliest how many electrons can be held in the energy level n = 4?

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy