Answer:
A. The cost of producing a kilowatt of power with fuel cell will be less than $30 in 2015
wait I have an wuestion is that high school work
Vertical Column is a group
Horizontal is Period
Aliki earth metals is a group
Lithium- Neon is both
Based on electrons are both
Number of electron shells is both
First, find moles of gold given the mass of the sample:
(35.9g Au)/(197.0g/mol Au) = 0.182mol Au
Second, multiply moles of Au by Avogrado's number:
(0.182mol)(6.02 x10^23)= 1.10x10^23 atoms Au
Mg gained mass because it went from being a single element (on the reactant side) to being a molecule (on the product side).
