The number of d-electrons in Fe2 + (Z = 26) is not equal to that of

A. p-electrons in Ne (Z = 10)

B. s-electrons in Mg (Z = 12)

C. d-electrons in Fe (Z = 26)

D. p-electrons in CI (Z = 17)

How would the consumption of antacid (sodium bicarbonate) affect urine pH?

Describe the silica tetrahedron

Is 3Fe + 4H20 → Fe3O4 + 4H2 a balanced chemical reaction?

How many types of van der Waals forces exist? 1 2 3 4

The density of ice is 917 kg/m3. The density of salt water is 1029 kg/m3. A mass of ice is 2.55 x 1013 kg. Calculate the volume of salt water that has the same mass as 278 km3 of ice.

A system consists of two components, each of which must activate if the system is to activate. One component has a reliability of. 99. The other has a reliability of. 95. The components are independent of one another with respect to reliability.

Which of the following energy level changes for an electron is most energetic? 3 → 2 5 → 2 4 → 2

Is baking soda a element compound homogeneous mixture or heterogeneous mixture?

For the reaction: C (CH3) 3I + Cl - → C (CH3) 3Cl + I- What is the activation barrier for the SN2 reaction mechanism, in units of kcal/mol? Provide your answer to the nearest 0.1 kcal/mol.

Which of the following utilizes the measurement of a short - or long-lived radioactive element, with its decay product, to determine the absolute age of an object? A. varves B. radiometric dating C. dendrochronology