An uncharged atom of boron has an atomic number of 5 and an atomic mass of 11. how many electrons does boron have? 11 15 5 2

What is the percent composition of Copper in CuBr2?

What is the result of boiling the impure product with too much solvent and then cooling on ice?

Balance Fe3O4 + H2 = Fe + H2O

The density of aluminum is 2.70 g/cm3. Apiece of aluminum foil that is 1000 cm on each side has a mass of 440. mg. How thick is the piece of foil?

The strength of an electric field depends on the

The mass flow rate of gasoline leaving a refinery is 1610 kg/min. The specific gravity of a gasoline is 0.700. A retail gasoline pump is able to fill a 20.0 gallon automobile tank in 1.80 minutes.

Calculate the solubility of cux (ksp=[cu2+][x2-]=1.27*10-36) in a solution that is 0.190 m in nacn.

An atom has seven valance electrons which element could have this type of atom

How is the ocean important to human survival? restate the question

A sample of pure lithium contains 7.99% lithium by mass. What is the % lithium by mass in a sample of pure lithium nitrate that has twice the mass of the first sample?