Three compounds containing potassium and oxygen are compared. analysis shows that for each 1.00 g of o, the compounds have 1.22 g, 2.44g, and 4.89 g of k, respectively. show how these data support the law of proportion..

1) how many electrons are in each energy level of the following elements? a. he b. na c. na d. ne 2) how many valence electrons are percent in the following atoms? a. s b. mg c. be d. cl 3) which of the following elements are stable as atoms? a. he b. o c. cl d. ar if you are able to provide the work as to how you got the answers that would be greatly appreciated. : )

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

An experimental procedure requires a 10 ml of acid to be dissolved