The most active of all the chemical elements is a halogen known as

A. astatine.

B. bromine.

C. fluorine.

D. iodine

The dipole moment (μ) of HBr (a polar covalent molecule) is 0.838D (debye), and its percent ionic character is 12.4 %. Estimate the bond length of the H-Br bond in picometers. Note that 1 D=3.34*10-30 C⋅m and in a bond with 100% ionic character, Q=1.

Which of these is a safe method for thawing frozen food?

Match the term with the definition. phase particle element Atom A) the basic unit of an element B) a substance that cannot be broken down into a simpler substance C) a tiny piece of matter D) a unique form of matter in which it can exist

This is is the common name for the aqueous cation h3o+, formed when a water molecule combines with the proton from a hydrogen atom.

Justify the following sentence "The molality is independent from the temperature whereas molarity is dependent on temperature"

Is it possible for 2 different elements to have the same atomic number

How is the mole similar to a dozen?

What element with the highest electronegativity value? Cesium calcium helium fluorine

How many neutrons and electrons are in Oxygen⁻¹⁷ isotope?

What is science all about?