What is the charge of Pb in Pb (SO3) 2

What is the concentration of a solution made by dissolving 8.0 g ch3oh in 250. g of water? find in molality.

How do you know when writing out equations the state of the element or compound

H2 burning in O2 to form H2O (l) is an example of a system where the entropy of the universe decreases. H2 is not flammable. A. True B. False

Using the periodic table, choose the more reactive nonmetal. Te or O

Which elements forms an ion with a 1 - charge?

Consider mixing 25.00 mL of 0.0200 M of each of the following of solutions. In which of the following will a precipitate form: Na2SO4 mixed with Ba (NO3) 2 NH4Cl mixed with Mg (NO3) 2 KF mixed with Ba (NO3) 2 MgCl2 mixed with Na2CO3

How many liters of chlorine gas at 650 mmhg and 25c can be produced by the reaction of 2.00 l of 2.50 m hcl solution with excess mno2?

What is the theoretical yield of H2S

How many atoms are there H, SO

How does the shape of the Earth affect the climate of different regions?