Write a detailed paragraph (at least 4 sentences) about the differences between chemical and physical changes. Give examples of each.

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

What volume of a 0.0606 m solution of strontium bromide is needed to obtain 0.340 mol of the compound? question 42 options: a)5.61 l b) 3.4 l c) 600 ml d) 1 l e) 178 ml

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+