5 What is the metal whose most common chloride has the chemical formula MCl4 b) Ti a) Sc d) Ni c)Cr

How many atoms of oxygen are contained in 160 grams of n2o3

18. use the activity series to predict whether the following synthesis reaction will occur. write the chemical equations for the reaction if it's predicted to occur. (s) + o2(g) -> *note: it is possible.*

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.