En que epoca aprendieron a trabaja el cobre y otros metales?

What is the value of keq for the reaction expressed in scientific notation

If i had 2 m naoh solution, what does the 2 m stand for? 2 molar, but 2 of a solute in 1

An engineer decides to use a slightly weaker material rather than a stronger material, since she knows that the stronger material can break suddenly. this is an example of what? a choosing a material that will show warning before it fails b using composite materials that combine strength c using a material for multiple applications d using design techniques that increase efficiency and reduce cost