What is the potential energy of 4kg object sitting on a 3m ledge?

To save time, you can approximate the initial mass of the solid to the nearest ±1 g. for example, if you are asked to add 14.3 g of copper, add between 13 g and 15 g. which of the following sets include two samples with an equal density? which all that apply below 15.4 g gold and 18.7 g silver 15.2 g copper and 50.0 g copper 20.2 g silver and 20.2 g copper 11.2 g gold and 14.9 g gold

How can the periodic table be used to predict the behavior of elements?

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added