The time of the year in which days and nights are of equal duration

The energy required to remove two valency electrons of a metallic atom is called? a. second ionization energy b. ionization energy. c. electron affinity. d. activation energy

Which element is malleable and conducts electricity? (1) iron (3) sulfur (2) iodine (4) phosphorus

In a reaction, chlorine accepts an electron to form Cl-. What is true about the atomic size of the chlorine ion?

True or False: The endocrine system prepares your body to deal with fear."

What is the vapor pressure of water at 75°C?

How does phosphorus enter the human body?

When a reaction occurs between atoms with ground state electron configuration 1s2 2s1 and 1s2 2s2 2p5 the predominant type of bond formed is

How does heat transfer takes place between any two systems?

Hydrate name of CaCl2 * 8 H2O

Calculate the heat evolved from a mixture of 14.1 l of sulfure dioxide