In a chemical reaction, 300 grams of Magnesium (Mg) are combined with 100 grams of Oxygen (O) to form Magnesium Oxide. How much will the product 2MgO weigh?

1. list three scientific reasons cockroaches may fly.

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.

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