Copper is an brown-orange color which it's atomic number is 29. With high thermal and electricity conductivity with it's smooth surface.
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Answer:
Explanation:
n CaCO3 = mass / m.wt
= 500 /( 40 + 12 + 16x 3)
= 5 mole
n CaO = 5 moles ( from the balanced equation we have 1:1 moles )
mass of CaO = nCaO X m.wt
5 x( 40 +16 )
= 280 grams
FeCl₂ + 2NH₄OH → Fe(OH)₂ + 2NH₄Cl
Manipulation of the independent variable should change the dependent variable, the value of which "depends" on the independent variable's change in value.
