Examine the chemical reaction C3H8+O2 4H2O+3CO2. What coefficient of O2 should be added so the number of atoms of oxygen is conserved on both sides of the reaction equation?

A: 3
B: 5
C: 7
D: 10

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?

Answer from each drop-down menu. e characteristics of a borane molecule (bh). the lewis structure and table of electronegativities are given olecular shape is and the molecule is reset next erved. search e a

Compare and contrast physical changes with chemical changes.