Answer:
1. Not to have enough salt water on the foil
2.not cleaning the foil well to remove interfering materials
Answer:
Co(CN)₂
Explanation:
Cobalt (II) cyanide -
The formula for Cobalt (II) cyanide is Co(CN)₂ , it is one of the inorganic compound . It is one of the type of coordination polymer , the compound is used in the many inorganic synthesis and in the homogeneous catalysis .
<u>The major use of Co(CN)₂ is that , it acts as a precursor to the cobalt carbonyl.</u>
The molarity of a 27%(v/v) aqueous ethanol solution is 4.63 M
calculation
convert 27%(v/v) to fraction = 27ml/100 ml
use density to convert 27ml to grams = 27 ml x0.79 g/ml = 21.33 g
find the number of moles of C2H6O
moles = mass/molar mass of C2H6O(46.07 g/mol)
moles is therefore = 21.33 g /46.07 g/mol =0.463 moles
find the molarity = moles /volume in liters
volume in liter = 100 ml/1000 = 0.1 L
molarity is therefore = 0.463 mole/0.1 L = 4.63 M
You will need wire cutters to remove just a little bit of insulation it should only be a few centimeters(remove from both sides).Then make sure to wrap the wire neatly around the nail.The more wire you put the stronger your magnet is.
-Detor
Answer:
a lot that's why it's really hot