Phosphorus trichloride, pcl3, decomposes to form elemental phosphorus and chlorine. the equation is: 4pcl3 → p4 + 6cl2. balance the equation and determine the mass in grams of chlorine that would be formed if 25 grams of pcl3 (molecular mass = 137.32 g/mol) decompose. grams of cl2

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a

Scientific evidence tells us that the cause of earths four season is the tilt of earth as it revolves around the sun. the student is instructed to illustrate this information in a science notebook. how will the student illiterate winter in the northern hemisphere?