Which ionic compound is used as a building material?

salt

limestone

magnesium oxide

iron oxide

Why is refraction so important in eyeglasses.

What will happen to a blood cell that is placed in a solution with a greater concentration of solutes?

Chemists studied the formation of phosgene by sealing 0.96 atm of carbon monoxide and 1.15 atm of chlorine in a reactor at a certain temperature. The pressure dropped smoothly to 1.47 atm as the system reached equilbrium.

Which of these periods contain elements with electrons in s, p, d, and f orbitals? A. periods 1-3 B. periods 1-4 C. periods 3-5 D. periods 6-7

Which has a slightly greater mass in a nuclear reaction, the reactants or the products? why?

A student measured 1.0 kcal when the student combined 99.7 mL of 3 M HCl with 100 mL of 3 M NaOH. Given that the reaction is HCl (aq) + NaOH (aq) → NaCl (aq) + H2O what was ΔHneutralization per mole of water?

Which is the odd one brass, copper, aluminum, iton, sapphire

What best describes the collisions between ideal gas molecules?

Select the atoms whose ions have an electron configuration of n d 6 (n = 3, 4, 5 ...). For example, the 2 + ion for V ends the electron configuration with 3d 3. Check all that apply. Tl Rh Fe Os Lu Ti

When two atoms are bonded together via electrons, and one of those atoms has a greater pull upon the electrons shared, the bond formed would be?