Pls help 1. Calculate the mass of iron needed to make 16.25g of iron chloride (3
marks)

2Fe + 3Cl2 → 2FeCl3

12. complete each of the following word equations for synthesis reactions. a. sodium + oxygen -> b. magnesium + fluorine -> 13. complete and balance the equations for the decomposition reactions. a. hgo -> [with the triangle heat symbol above the arrow] b. h2o(l) -> [with "electricity" written above the arrow]

What are the primary responsibilities of a chemical engineer involved in "r& d"? develop large scale manufacturing operations discover new products and processes training of new chemists determine products needed by consumers

Connect the whole numbers on the periodic table to indicate what they represent?