Why do some transition metals have multiple oxidation states?

What is the density of a mineral with a mass of 41.2g and a volume of 8.2 cm?

What is the charge of copper on the reactant side? What is the charge of the copper ions on the product side? Was the copper oxidized or reduced? By what number of electrons? Equation: Cu + 4HNO3 - - > Cu (NO3) 2 + N204 + 2H20

What is a laboratory

Why is a mole of oxygen and a mole of oxygen gas a different molar mass?

A + B-2C, ΔΗ1 1/2A + 1/5B + C, ΔΗ" = ?

If you see the Sun is high in the sky, what can you say about the SUN as viewed from the opposite side of Earth at the same moment?

What element has 8 valence electrons

Which of the following best describes a metal? Brittle, shiny, and solid Brittle, dull, and low density Malleable, shiny, and able to conduct heat or electricity Malleable, dull, and solid, liquid, or gas at room temperature?

Which of the following errors could cause your percent yield to be falsely high, or even over 100%? Select ALL that apply. A.) Heating the sample too vigorously. B.) Handling the crucible directly with your hands. C.

If 56.8 ml of bacl2 solution is needed to precipitate all the sulfate ion in a 554 mg sample of na2so4 (forming baso4), what is the molarity of the solution?