How many electrons does oxygen gain to become oxide

What is the molarity of a solution that contains 5.0 moles of solute in 2.0 liters of solution?

What is the gram formula mass of potassium hydroxide (KOH) ? 40 56 51 47

What does the electronegativity of an atom indicate? O A. The energy required to gain or lose an electron O B. The tendency of the atom to pull on electrons O c. The measurement of the charge of an ion O D.

How many moles of LiOH are required to make 4.2 liters of a 0.98 M solution? Round answer 2 decimal places

What are the features of erosion?

If you go into the lab and dissolve 2.11 g of magnesium chloride in enough water to make 1500 ml of solution, what is the molarity of the resulting solution?

Which one of the following Acids is most likely to hurt you? Acid A: 1.0 M; Acid B: 0.0001M

Which statement accurately describes the atoms of a specific element? explain your answer in complete sentences. A. A Neon, Ne, atom contains 10 electrons outside the nucleus and 11 neutrons inside the nucleus. OR B.

What is the volume of 2.00 moles of chlorine (cl2) gas at stp, to the nearest tenth of a liter?

A reaction of 12.640 g of copper oxide with 0.316 g hydrogen produces 2.844 g of water and Xg of copper. X=_9