Which of following of the following forms that chemical hazards can be in?

What is the isotope for oxygen

What happens when an electron absorbs energy? A. The electron moves from a lower energy orbital to a higher energy orbital. B. The electron falls into the nucleus. C. The electron moves from a higher energy orbital to a lower energy orbital. D.

Why alkali metal impart characteristic colours when introduced to flame

How do you determine the possible quantum numbers for an atom?

What is the Molarity of 0.60 moles of solute in 0.40 L of solution?

If joey ran 28 meters in 4 seconds, then his velocity was m/s

We have seen that ions in aqueous solution are stabilized by the attractions between the ions and the water molecules. Why then do some pairs of ions in solution form precipitates?

Does (NH4) 2SO4 and AgNO3 form precipitate

Compare the electron-dot formulas of CH4 and H2O. Why do these molecules have approximately the same bond angles but different molecular shape?

Water learned in science class that different substances release heat at different rates. He decides to test this. At home, Walter turns the oven to 200°F.