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The step for folding filter paper for gravity filtration is ____.
4

____ IS useful source of heat for reactions, especially where temperatures over 100oC are required,
Hot plate

A source of heat that is considered inefficient in the laboratory is _____.
Hot plate

_____ IS useful source of heat for reactions, especially where temperatures over 100oC are required,
Heating mantle

The flame of a Bunsen burner has _____ part(s)
2

The behaviour of ______ is important when considering mixing.
Liquid

To turn of the burner, turn the handle on the gas outlet valve until it is ______ to the outlet nozzle.
Perpendicular

______ fluids are probably best liquids for oil baths.
Silicon

______ are used mainly in the laboratories and industrial units.
Hydraulic scale

_____ provides an even source of heat whose temperature can be

closely controlled.
Oil bath

Heating circulators is used for all the following options EXCEPT _____.
Furnace