Bromine displaces iodine from a solution of potassium iodide.
a)Write the balanced half-equations for this reaction
b)Add the half-equations, to give the ionic equation for
the reaction

What is avogadro’s number, and why is it useful

Based on its chemical properties, identify the position of each chemical family on the periodic table.

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?