What concentration of the barium ion, ba2+, must be exceeded to precipitate baf2 from a solution that is 1.00*10-2 m in the fluoride ion, f-? ksp for barium fluoride is 2.45*10-5. express your answer with the appropriate units?

P. 2.5g of chlorine gas at STP to molecules?

1. In preparing Solution 3 for the kinetics rate runs, a student weighed our 0.2653 g of dye (molecular weight 879.9 g/mol. This was transferred to a 100 mL volumetric flask and water was add to make 100.00 mL of solution 1. A 10.

How many hydrogen atoms are in one molecule of c2h2?

Unbalanced forces can cause an object change its motion in three ways. What are they?

Lead crystallizes in a face-centered cubic structure with a density of 11.34 g/cm3. Polonium crystallizes in a simple cubic structure with a density of 9.3 g/cm3.

Which of the following gases in Earth's atmosphere would you expect to find as molecules and which as individual atoms? a. Nitrogen b. Oxygen c. Argon

A substance that does not conduct electricity as a solid but does conduct electricity when melted is most likely classified as (1) an ionic compound (2) a molecular compound (3) a metal (4) a nonmetal

What is done with the reactive sodium after the reaction to make sure the products are safe in an air bag?

Which of the following does not indicate a chemical change? precipitate formation crushing a solid into a powder color change gas evolution

Reactions cannot occur without a certain minimum amount of energy. what is this minimum amount of energy called?