Asodium ion has 11 protons, 12 neutrons, and 10 electrons. which of the following is true? answer options with 5 options a. sodium's atomic mass is 33 amus. b. sodium's atomic number is 21. c. sodium has a net negative charge. d. sodium has a net positive charge. e. sodium has gained a neutron.

What is the maximum amount of al2(so4)3 which could be formed from 15.84 g of al and 12.89 g of cuso4?

Arecipe calls for 1.2 cups of oil. how many liters of oil is this?

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.