Elements listed in vertical columns of the periodic table:

have similar chemical properties

have similar physical properties

are metals

can combine with each other chemically

What's the name of the ionic compound Zn (OH) 2?

sulfur combines with hydrogen to form hydrogen sulfide H2 S by single covalent bond, while it form with potassium by ionic bond

Chromium can form either a 2 + or a 3 + ion. what is the stock name for the chromium ion with the 3 + charge?

The following reaction was performed in a sealed vessel at 760 ∘C : H2 (g) + I2 (g) ⇌2HI (g) Initially, only H2 and I2 were present at concentrations of [H2]=3.85M and [I2]=2.35M. The equilibrium concentration of I2 is 0.0500 M.

Thew way light bounces off a mineral surface is described by the minerals

Which statement describes the redox reaction that occurs when an object is electroplated? A. It is spontaneous and requires an electric current. B. It is spontaneous and produces an electric current. C.

How are electromagnetic different than all other waves

Find the ratio of speeds of an electron and a negative hydrogen ion (one having an extra electron) accelerated through the same voltage, assuming non-relativistic final speeds. Take the mass of the hydrogen ion to be 1.67*10^{-27} kg.

A type of rock that undergoes changes because of heat and pressure

How many milliliters of a 1.25 molar HCL solution would be needed to react completely with 60 g of calcium metal Ca+2HCl - - > CaCl2 + H2