Studies assessing the amounts of different carbon isotopes (12C, 13C, and 14C) in the atmosphere were important because they provided evidence that human activities were, in fact, adding CO2 to the atmosphere. Of what type of relationship is this an example

You wish to prepare a buffer consisting of acetic acid and sodium acetate with a total acetic acetate plus acetate concentration of 250 mm and a ph of 5. what concentrations of acetic acid and sodium acetate should you use

Iv the concentration of ionic substances is important for the heart to beat. your heart responds to electrical impulses that travel through heart cells that are made up mostly of water. which properties of ionic compounds are important to support this function? solubility in water conductivity crystalline melting point الم" الا به done رلرلرللللہ و و او 8

Susann makes the following entry in her notebook on friday we are given a blue liquid in a shallow container we place it on the windowsill over the weekend or monday morning there was no liquid left with the dish had some solid blue stuff in it