How many grams of oxygen are produced with 54.7 g potassium chloride

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

100 points answer quick the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Chromosome 17 is made of over million base pairs.