LAB

its major function is to control the amount of air entering the barrelit is present around the air holes at the bottom end of the barrelit works on the screw mechanism

it contains air intake openings that mix air and gas togetherit is a metal tube that lies on the base of the burner, a smile size of holes (air intakes) is present on the barrel that opens at the bottom allowing air into the barrel.

it is responsible for letting gas into the barrel through the collarit is often attached to the base of the burner or screw

it provides support to the bunsen burnerit is often present as six sides (hexagonal) shapebeing supportable, it is a wide and heavy part of the bunsen burner

the air holes allow air to enter the burner for a mixture of air and gas or any other liquid fuel with air e.g, petroleum.

are used to transfer the gas into a bunsen burner.

it is a point where gas enters the burner. it helps to extend the gas flow valve. the major function of the gas inlet to control the leakage of gas through a gas pipe.

- “coolest flame” - 300°C

Medium flame - 500°C

- “hottest flame” - light blue triangle - it makes noise - 700°C

Upper oxidizing zone of non-luminous Bunsen flame

Lower oxidizing zone of non-luminous Bunsen flame

Upper reducing zone of non-luminous Bunsen flame

Lower reducing zone of non-luminous Bunsen flame

This is an analytic procedure used in chemistry to detect the presence of certain elements, primarily metal ions, based on each element’s characteristic emission spectrum. The color of flames also depends on the temperature.

the ability of an atom to attract to itself an electron pair shared with another atom in a chemical bond.

the amount of energy liberated when an electron is added to a neutral atom to form a negatively charged ion.

is a measure of that elementʼs tendency to act as an oxidizing agent (an electron acceptor)

temperature at which the solid and liquid forms of a pure substance can exist in equilibrium

As heat is applied to a solid, its temperature will increase until the melting point is reached.

half the distance between the nuclei of identical neighboring atoms in the solid form of an element.

temperature at which the pressure exerted by the surroundings upon a liquid is equaled by the pressure exerted by the vapour of the liquid;

under this condition, addition of heat results in the transformation of the liquid into its vapour without raising the temperature.

Have seven electrons in their outer shell

Halogens are often used as