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Description

BoraxBorax, also known as sodium borate, sodium tetraborate, or disodium tetraborate, is an important boron compound, a mineral, and a salt of boric acid. Powdered borax is white, consisting of soft colorless crystals that dissolve in water. Formula: Na2[B4O5(OH)4]8H2O

or sodium phosphate dibasic

dim lights

which allow the users to grasp a hot crucible

Since iron is a ferromagnetic material

also called lead monoxide

can be observed as a series of light and dark concentric circles around a central dark spot where the lens and glass plate meet

Bromine is a chemical element with symbol Br and atomic number 35

with the formula C6H8O7

Consists of a brass cone and heavy steel-cutting edge mounted in a wooden handle

open at the top and closed at the bottom

Formula: PbCrO4

Formula: PbS

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