Tungsten is a metal. The symbol of tungsten is W
Tungsten is produced from tungsten oxide by reaction with hydrogen.
The equation for the reaction is:
Woz + 3H2 – W + 3H2O
Calculate the percentage atom economy when tungsten is produced in this reaction.
Use the equation:
184
percentage atom economy =
(M. WO3) + (3 > M H2)
x 100
Relative formula masses (M.): WO3 = 232
H2 = 2
[2 marks]
Percentage atom economy =
​

pure water does not conduct electricity very well. however, when certain substances are dissolved in water, the solution does conduct electricity. you can make a simple device that shows how well a solution conducts electricity. this device uses a flashlight bulb to indicate how well the solution conducts electricity. the better the solution conducts electricity, the brighter the bulb will glow.

explanation:

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it takes on an electronical energy